Short term affordability, maybe, but long-term, not so much. Move pilots into some type of interim turboprop platform, and you're moving them out of somewhere else, be that AV-8Bs, F/A-18s, or skids. That's in addition to the training, basing, logistics, etc. I think that's why this sort of thing is finding traction in the special warfare side, more so than in the regular forces. They have the budget to allocate for short-term, one-off solutions that the rest of the military doesn't. It would be great if we had the flexibility in the process overall to do this. Unfortunately the spec war types will want to lick their own ice cream cone with their assets. The regular component commanders will not want to lose X number of jets in the long-term for a Y CAS turboprops only relevant in the short-term fight.
It would be cool to lease say, two squadrons, of Super Ts for example. One training unit in CONUS and one permanently based in theater. Pilots would rotate in for an 18 or 24 month B-billet tour, time spent almost entirely overseas, before going back to their fleet platform. I think that funding that would be a nightmare, though.