Even if it's a critical failure, it will still be a commercial success.
More importantly, the way Disney is treating it with multiple sequels and spin off movies already in production, I'd say it will be a success. As for the fans, It looks like Disney understands what they want to see on the big screen.
So really, it's just down to what the story and characters will be like; and how the movie will end, leading into the next Episode. Hope it ends in a cliffhanger. That would be great!
On the other hand, expectations are High and just a single 'Jar Jar' on board could be enough to de-stabilise the whole carefully floated boat.
-Windebieste.
