I hate to sound negative but I think any new star trek movie would have to attract new fans to be successful.
Star Trek fans are far far far too finicky for anything new to be successful. When Enterprise came out it was disowned by many fans just because it didn't have perfect continuity or because it didn't match their view of what early Trek would be like or just because there were words in the theme song.
I've been to the Star Trek boards during that time and I couldn't believe how fans were turning away from what was a good show for no real reason (in my opinion).
Very few producers will look at Enterprise's failure as "we did it wrong" - they'll look at it as "Star Trek failed lets leave it alone". For fans this is a loss.
Perhaps some well-known talent from other non-trek sources would attract fans. Perhaps if it were just a very good sci-fi starring well know actors that just happen to be playing characters named Kirk and Spock then perhaps it would be accepted by the general public and be successful.
For example, some fans would like it to be darker in atmosphere while others want it to be bright and positive. What would sadden me is that if the movie were either, some fans might refuse to see it thereby cutting the fan base in half - and eliminating any producer's interest for years to come.