Lets pretend its November and price changes/launches have all happened. Black Friday is right around the corner and the world is in a shopping frenzy with video game hardware right at the top. I'm going to list some reasonable pricing options and just give an idea of how many units you see each product selling in say December 2012. (also assume world does not end)
X360
Arcade+Kinect - $99 w/ contract
Arcade - $179
360 - $229
360+Kinect - $269
360/BO2 - $269
360/holiday bundle w/ 2games - $269
360/Halo4 special edition with crazy paint/2cont/etc - $399 (confirmed)
PS3 (new 4000 models)
16GB - $179
16GB+Move - $199
16GB+AllStarBattle - $199
250GB - $229
250GB/holiday bundle w/ 2games - $269
250GB/BO2 bundle - $269
500GB 2/free PSN+ 6mo (or similar) - $269
Wii
Wii - $99
Wii U
Wii U/Nintendoland - $279 (white/black)
Wii U/BO2 + ControlPro - $329 (black)
PSV (wifi only)
PSV - $249
PSV+memcard/CoD - $249
PSV+memcard/AC - $249
PSP
PSP - $119
3DS
3DS - $169
3DSXL - $199
3DS/XL+NSMB2 =+$30 (i.e. add $30 to either price above)
DS
DSi - $99
The there is the normal BF day type specials where any given console gets $50 gift cards to some store and so on.
For reference, last holiday...
DS - 1.4m
3DS - 5.1m
Wii - 3.2m
360 - 4m
PS3 - 3.4m
PSP - 1.2m
PSV - 0.5m
Consider DS, PSP, and Wii all have been replaced and 3DS/PSV both have many more games as well as Wii U may be supply constrained. (Wii only had 3m avail for world wide launch in 2006 and about same for PS3)
EDIT: updated OP based on some of your responses. BTW, I thought it was clear enough, but yes these bundles are ones I figured were likely to happen based on history. I meant this thread as a what if scenario to get an idea of what we may see in the market in order to make halfway decent predictions.
Essay Pro