Forza will be in 3 figures by the time GT6 and S3 see the light of day.
Microsoft & Sony will have released a new console. The standard Xbox 45.6billion (they cant go 1, 2, cos doesnt sound superior to Sony's common-sense approach) version of which is just a cardboard retail box, you buy the contents additionally. DVD drive at £120, graphics card at £550, USB connections at £25 a peice for the controllers.
Sony will have played it safe, expanding upon the PS3s multi-purpose nature, the PS4 will have an alarm clock, food blender, microwave oven, shoe polisher, and power shower. It'll cost £5k, but the execs need to get into those markets and afterall, it only does everything.
5yrs later, just as the EU release of GT6 is on the horizon and S3 gets another meaningless update (accurately threaded wheel nuts, if you must know!) even though scawen hasnt realised nobody has played LFS for 18 months, Microsoft will announce they're going to retrospectively give customers the cables to connect all the overpriced junk they were forced to purchase, rather than continue selling something that they knew doesnt work when they had the idea 'i know, lets make a new XBox' back in 2007.
Due to the nature of the entry level xbox, designers will have to ensure every game can at least work on an etch-a-sketch, developers will be so lazy they wont even port games over to the PS4, they'll just get a marker pen and write PLAYSTATION FOOR GAME on the boxes.