Scheduling has already been a nightmare in Moscow. I understand them wanting to wait, because there is still movement happening between the conferences. I just don't think they can hang on for more than one season.
I doubt the Sun Belt wants them. Benson, maybe. The actual schools in that league, doubtful. It's just too far to travel, especially when they have an adequate number of schools within their own geographic area. They also have Louisiana Monroe, who is considered the weak link of that conference. ULM has not had a winning record since joining FBS in the early to mid 90's, and they still operate on an athletic budget of around $8.5 million! That would be a mid-tier budget in the Big Sky! I don't think the Sun Belt wants to take on two schools which are on the brink. Too much risk.
I think Idaho would have its hands full trying to schedule ONE season as an independent. Like I said, it's been a nightmare for them as it is. To be an FBS program, you need to play 5 FBS opponents at home each year. I believe you can include an FCS team among those 5 as long as it offers at least 90% of available scholarships, and you can count one game at a neutral site as a home game. Idaho has had 4 home conference games, and they have scheduled 2 non-conference home games. If they go indy, where do they get the extra games? Scheduling mid to late season will be next to impossible for home games. The other quandry is the guarantee amount Idaho pays. They pay $150,000 per team, at least this season to EWU and Wyoming. How much did ISU receive to go the same distance and play Wazzu? $400K to $500K? ISU received around $500K for the BYU game. And these were low amounts compared to Georgia, Oklahoma, and the others. Kramer won't play Idaho up there if they are FBS, because they don't pay enough. Idaho can increase the guarantee amount, but where are they getting the money from? They won't receive any TV money as an independent, so some other area of the department will have to work with less unless they load up on more bodybag games. The record will be bad, but even so, there still wouldn't be a bowl game to play for as an indy, so recruiting will take a hit.
Wish 'em luck, but I don't think they can wait a couple of years.