Someone would but it would have to be superficially recognisable to make a lot of money out the brand (if that's something that's important...it isn't to me).
Hannibal Rising wasn't very good but the book sold well and the film turned a small profit, it probably would have made more money if Anthony Hopkins was there and a bit more if Jodie Foster was there (God knows how) because Silence Of The Lambs is the defining film associated with the series even though Manhunter came first.
The Young Indiana Jones Chronicles (for me) next to Raiders is a far better utilisation of the character than any of the other films but Harrison Ford is barely in it (not in the DVD sets at all), John Williams music isn't featured and it generally has a very different feel to the stories than the film series.
I'm not sure if it's the same elsewhere but hardly anyone in the UK, that I know of, is even aware that the series exists but KOTCS still did good box office despite being utter bollocks.
Personally I'd have to read a tonne of good reviews and receive recommendations from people who's opinion I generally trust before I'd see another Indy or Star Wars film in the cinema.
Otherwise I'd wait for the DVD to come out and be around long enough to purchase cheap...in fact I might make a point of getting it second hand if the word was that it was anywhere near as bad as KOTCS.
I still haven't got that on DVD because it's just not cheap enough to warrant buying for completion sake (and this is someone who has a charity shop bought copy of AVP).