This is the puzzler for me, but then I've never been a fan of AUs. If you're going to take only the names and the broadest hint of the concept, why not just make a new film? Even the ST movies, as I understand, hewed fairly closely to the premise, at least, of the original series (the Federation setup, etc.). If you make a new film, you have no built in fan base, but if you eliminate everything about the original concept, you just alienate your built in fan base, so ... seems the result would be the same. Still, it's early days - maybe a lot of fen will love this and it will spark UNCLE.2 - who can say?