PS4: 120mil. Sony will have an excellent launch (unlike Ps3), cheaper price (unlike PS3), and it'll be easy to develop for (unlike PS3). Will be out for 8 years before PS5 releases. (if it releases). Won't lose much exclusives to MS because this time, they'll be owned by Sony.
720: (if MS doesn't get more first Party): 70mil. Will sell a little bit better than 360 but will have it's lifespan cut short. Will be out for 6 years before XB4 releases (if XB4 Releases). Won't be able to steal IPs from Sony because Sony will own them.
720: (if MS does get more first Party): 90mil. Will be neck and neck with PS4 in America but weaker in Japan and slightly weaker in EMEAA.
Wii2: 130mil. Not really sure with this one. I'll just assume it'll do good like the wii.
3DS: 150mil:
PSP2: 100mil: Will sell like PSP but won't stop selling due to piracy.
