So, this is my very first thread that I shall be authoring for this site. So to start out with a bang, I decided to take all the sales data from the top 31 3DS games according to VGChartz, do a little bit of math, and estimate where all of those games will be at in terms of sales figures by the end of the year.
(Note: This will not include the week where the end of December 2015 and beginning of January 2016 take place in the same week.)
So with that said. Here are the my estimations of what I believe the sales figures for the top 40 best selling Nintendo 3DS games, according to VGChartz, will be by the end of the year of 2015!

1)      Pokemon X/Y                    Year End 2014: 12.58           7/11: 12.95                     Year End 2015: 13.37

2)      Mario Kart 7                       Year End 2014:  10.51         7/11: 10.87                        Year End 2015: 11.25

3)      Super Mario 3D Land      Year End 2014: 10.02            7/11: 10.24                      Year End 2015: 10.44

4)      New Super Mario Bros. 2  Year End 2014: 8.51            7/11: 8.80                    Year End 2015: 9.07

5)      Pokemon Omega Ruby
Alpha Sapphire                    Year End 2014: 7.34              7/11: 8.58                          Year End 2015: 10.68

6)      Animal Crossing: New
Leaf                                       Year End 2014: 7.56              7/11: 7.95                        Year End 2015: 8.33

7)      Super Smash Bros.
3DS                                        Year End 2014: 5.47           7/11: 6.29                          Year End 2015: 7.56

8)      Luigi’s Mansion Dark
Moon                                    Year End 2014: 4.08          7/11: 4.23                          Year End 2015: 4.33

9)      Tomodachi Life                  Year End 2014: 3.81           7/04: 4.22                          Year End 2015: 4.70

10)   The Legend of Zelda:
Ocarina of Time 3D          Year End 2014: 3.57              7/11: 3.72                          Year End 2015: 3.83

11)   Nintendogs + cats            Year End 2014: 3.51              7/11: 3.58                          Year End 2015: 3.63

12)   Monster Hunter 4            Year End 2014: 3.43               7/11: 3.44                          Year End 2015: 3.45

14)   Monster Hunter 4
Ultimate                              Year End 2014: 2.41              7/11: 3.35                         Year End 2015: 3.42+West

13)   Youkai Watch 2 Ganso/
Honke                                   Year End 2014: 3.06              7/11: 3.14                          Year End 2015: 3.32

15)   Monster Hunter Tri          Year End 2014: 2.69                7/11: 2.73                          Year End 2015: 2.80

16)   Youkai Watch 2
Shinuchi                               Year End 2014: 2.25                7/11: 2.63                          Year End 2015: 3.03 EDIT

17)   The Legend of Zelda: A
Link Between Worlds         Year End 2014: 2.38                7/11: 2.52                          Year End 2015: 2.70

18)   Paper Mario: Sticker
Star                                        Year End 2014: 2.12               7/11: 2.17                          Year End 2015: 2.22

19)   Mario & Luigi: Dream
Team                                     Year End 2014: 1.81              7/11: 1.88                          Year End 2015: 1.94

20)   The Legend of Zelda:   February 14, 2014: 0.86            7/11: 1.78                           Year End 2015: 2.00+      
Majora's Mask 3D

21)   Donkey Kong Country
Returns                                Year End 2014: 1.59               7/11: 1.68                          Year End 2015: 1.77

22)   Fire Emblem:
Awakening                         Year End 2014: 1.50          7/11: 1.64                          Year End 2015: 1.79

23)   Professor Layton & the
Mask of Miracle                     Year End 2014: 1.55          7/11: 1.61                          Year End 2015: 1.69

24)   Puzzles & Dragons           Year End 2014: 1.49          7/11: 1.50                          Year End 2015: 1.52+West

25)   Kirby: Triple Deluxe         Year End 2014: 1.33          7/11: 1.49                         Year End 2015: 1.67

26)   Kingdom Hearts 3D:
Dream Drop Distance     Year End 2014: 1.43          7/11: 1.48                          Year End 2015: 1.53

27)   Mario Party: Island Tour Year End 2014: 1.27          7/11: 1.40                       Year End 2015: 1.52

28)   Youkai Watch                     Year End 2014: 1.31          7/11: 1.33                          Year End 2015: 1.35+West

29)   Lego City Undercover    Year End 2014: 1.18          7/11: 1.28                          Year End 2015: 1.40

30)   Dragon Quest VII             Year End 2014: 1.24          7/11: 1.26                          Year End 2015: 1.24

12)   Bravely Default: Flying     Year End 2014: 1.12          7/11: 1.22                         Year End 2015: 1.29
Fairy

21)   Kid Icarus: Uprising          Year End 2014: 1.18          7/11: 1.21                        Year End 2015: 1.23

33) Pokemon Mystery Dungeon:
  Gates to Infinity                  Year End 2014: 1.15        7/11: 1.18                         Year End 2015: 1.20

34) Mario & Sonic at the London
2012 Olympic Games            Year End 2014: 1.15       7/11: 1.16                         Year End 2015: 1.17

35) Super Street Fighter IV:
3D Edition                               Year End 2014:  1.10      7/11: 1.13                         Year End 2015: 1.16

36) Pokemon Rumble Blast         Year End 2014:  1.09      7/11: 1.10                        Year End 2015: 1.11

37) Yoshi's New Island                  Year End 2014:  0.97      7/11: 1.05                        Year End 2015: 1.10

38) LEGO Star Wars III: The
Clone Wars                              Year End 2014: 0.99       7/11: 1.01                        Year End 2015:  1.03

39) Dragon Quest Monsters:
Terry's Wonderland 3D          Year End 2014: 0.96      7/11: 0.96                        Year End 2015: 0.96

40) Sonic Generations                    Year End 2014: 0.91     7/11: 0.94                         Year End 2015: 0.97

Now these figures are entirely hypothetical and are strictly my estimations based on the math that I've done. Most of these figures could very easily be either waay overtracked, or waay undertracked, or some may be close, but not quite there, and some may be right on the money. Only time will tell.
But in the mean time, let's all just enjoy it! :)

N