guarantee games are usually scheduled in the spring/summer/early fall. don't know on home and homes or games designed for tv, but i would guess it is the same.
so the games/opponents are largely undecided. but if you are looking for a major upgrade in opponent quality, you're going to be disappointed. this whole rpi/sos thing isn't a secret, everyone knows about it. higher quality teams know they're in demand and accordingly charge much higher prices to accept guarantee games.
ksu isn't going to hand martin a bunch of extra cash to improve the sos, so you're going to see a lineup of more or less the same.