It didn't work? Um.. how? There's this thing called story, set-up, foreshadowing. Tron Legacy was perfectly as a sequel & stand-alone film
No. I'm pretty sure they are definitely in the best place to put out a good film. If it wasn't good, it'd flop. Therefore they'd lose money. If it's good, people will see it & they'll make more money.
The real problem is, they dropped the ball with not getting a sequel made years ago, resulting in having a new cast. And if Cillian Murphy isn't back, it's already off to a bad start story wise.