l-e, I'm not sure if you wanted to to respond on this thread or the one in Crum, so I'll just respond here.
First I'd qualm you're fears about being able to get to the final 4 or win a NT from ISU. SHS just did, so obviously you can as well. Heck in in more established worlds (like Wooden) it wasn't all that long ago that Marshall won the NT. Now as Iowa, Kansas, Wisconsin, etc... get filled up, it will get tougher to recruit at ISU, but it even if all of the surrounding schools fill up this season they'll have so much rebuilding to do that they'll have to avoid any significant battle.
2nd, you've got a good returning team coming back. Hamm would have helped, but I think you're a safe bet to make it back to the NT again, so what is available now, should be available next year. Once you get to the NT, its all about matchups, solid game plans and a little bit of luck. I don't think that you'll have to win the NT to get to Kansas, but getting to another final 4 in the next couple of years will most likely be a must.
Other than Kentucky, I don't think there is a single sim team out there that could be built into a final 4 team in under 2 seasons (of course SHS might have proved that wrong). I think you stand a much better shot staying at ISU than taking over a sim team. Now if there is a human coached school that opened up that wouldn't knock your loyalty rating too much, that's a difference story perhaps.
I don't know how this new update will effect recruiting for sims in D1. The issue that they seem to address has never been a problem for D1 sims like it is for D3 sims. I could be completely wrong, but I think there are now enough near elite human controlled teams that the sim elites will continue to struggle to get solid recruits. I don't think staying at ISU will enable you to land a sim school next year w/ a better roster. Of course I could be wrong on that, perhaps there is something that I'm not seeing that will help a sim coached Kentucky land top talent.
To wrap it all up, if you the only schools other than ISU that you'd want to stay at long term are Arizona, Kansas or UCLA, then I'd stay at ISU until you can get there. The only way I'd move to improve my chances would be under a situation similar to what might happen to Stanford this year where a really solid program controlled by a human opens up that won't kill your loyalty too much.
I guess the other exception would be if you think you can land ISU in another world, and think that a place like wake forest would be a nice step up and a place you could be happy at in crum should you never be able to land your kansas.
Hope that helps.