I prediction your 5th prediction will be the msot disagreed with
I expect Sony next generation will have an improved move controller bundled with the PS4, and will have still support use of the dualshock 3 and sixaxis to about the same degree Nintendo supports the GC controller. Hopefully they will release a dualshock3 plus for people with regular sized hands.
I also disagree with the first prediction, I am expecting it to be the Playstation 4
2, 3 and 4 all seem reasonable. I'm not 100% sure that they will have a premium paid PSN service but who knows







