i disagree halo is going downhill and i think we see an increase is sales for reach from halo 3.ill tell you why.
halo 1 sold over 5 million copies.halo 2 has sold about 8.4 million copies. thats increase of about 3 million copies.take a note that when halo 2 came out there was about 16 million xboxs out.(24 now) then halo 3 came out it has about 10.4 million copies sold.when its alsaid and done it will sell at leas 11.5 million copies. that will be an increase of about 3 million copies. also when it came out there were about 18 million consoles. then theres reach. do you see the steady increase in sales of about 3 million. i see it selling at least 14.5 million copies. but it could sell potentialy alot higher.so when halo 3 came out there were 18 million consoles. when reach comes out there will be more then 40 million xbox 360s. thats more then double.that means it has a potential of selling 20+ million copies.
the numbers dont lie. expect around 15 million copies sold at least.
dont look at odst or halo wars for comparison either(but if u do they should comfirm the popularity of halo). halo wars is a rts and not made by bungie.it still sold really good for a rts though(probably thanks to halo1,2,3)and odst is basically a expansion. its sold more then 3.3 million copies(it will probably end up with more then 5 million copies damn) and it basically a dlc. a shit-load of people are buying it knowing it only has 3 hrs of campain. theyre paying 60 dollars for a game that should be a 19.99 dollar expansion pack.
another thing i forgot to mention is that reach is the best halo story so the sigle player should be the best of the franchise.
anywho i think halo 4(yes sequel to halo 3) will come out when the next xbox is released.Around 2013. makes sense because at least 1/4 of the xbox 360 owners will have owned halo 3 or reach. and it wont be made by bungie so they probably will be leaning to do a safe project.
Halo MCC will sell 5+ million copies(including digital)
halo 5 will sell 10 million copies(including digital)
x1 will pass ps4 in USA, and UK.