As I see it, the question for Revere is whether or not he can develop some gap power and keep outfielders honest. As it is right now, the guy is going to get lots of strikes simply because pitchers don't fear him. I agree he needs to take more walks, but what I don't see is opposing pitchers fearing throwing strikes constantly because they know he won't make them pay.
As such, the career OBP of .371 that John mentioned is a bit misstated. In the minors, lots of pitchers are working refining secondary pitches and control issues. As such, he's going to get more walks. Despite this, the OBP John mentioned was largely driven by contact, not walks. I don't see these things happening in the big leagues... I just don't. No one is going to nibble with the guy when they know that 1/3 of his plate appearances are weak grounders to the pitcher and the bulk of the remaining ones won't make it out of the infield.
Then you have to deal with his arm. I don't trust him in center or right because it's that bad. I could see an 8th/9th inning replacement/spot start where the goal is to keep guys off base to start those innings. I'd put Revere in left and dramatically upgrade the defense.
So to me, it comes down to whether he can develop some gap power. If he can, pitchers will nibble more, and the idea of him taking a walk is suddenly more likely. If that's the case, I'd send him to Rochester. But at this point, I'd think the org should have a pretty good idea if it can show. I'm betting against it. He's a 4th OF (and a pretty good one).