I really don’t see why if Key/VA can crowdfund an anime for a Kud Adaption, even a theatrical release (as implied), why they couldn’t crowdfund movies/ONA’s/OVA’s for the Rewrite heroine routes, nor Tomoyo After.
Little Busters! isn’t even that popular or known in the west, and Kud is the only VN that hadn’t been (fan)translated to be released, and also has only a small fraction of Little Busters!’ popularity. I don’t see how they could get enough money overseas to help.
Of course it may be popular in Japan for all I know. They definitely won’t get much overseas though. Any of their other titles would get more funding overseas, and that’s a fact.