Revere scares me only because Gibbons would bat him lead-off. Other than that, I mean he might be able to bounce back offensively and be an adequate LF option (maybe a 1 WAR type) so it may not be an awful move in isolation, but yeah, I think I'd rather just start Pompey and hope he produces.
The Royals could probably get a 3 WAR season out of Dyson even as a 4th OF, but they have 3 starting OF's and a bunch of 4th OF types. They'll have to make a trade of some sort. Dyson would be such a good fit, but if the Royals want an MLB talent, then it will be hard to find a match. You think they'll take Harold Ramirez? Doesn't strike out and hits for average....that's like a Royals prototype.