I love the MU and I think it would have been great to see a bit more of it. Although I enjoyed "New Cloak" for M-Ezri, the action etc. I do tend to agree it should for the most part have been played more straight, with occasional goofiness (I like what they did with M-Vic a lot better than the original).
In particular, I'd have loved to see our Ezri meet M-Jadzia (she was off the show but couldn't they arrange one episode?) and have a meeting of the Daxes.
As for the Empire, my personal headcanon is that Kirk's intervention split the MU in two - one where his intervention brought about the fall of the Terran Empire and the rise of the Alliance (Alliance-verse) and one where it didn't (because Spock failed, because Spock deduced that destroying the Terran Empire would simply give rise to something like the Alliance, whatever) (Empire-verse). And I do wish we'd gotten to see that as well, although an episode of Voyager showed us something very much like it.
In particular, I'd have loved to see our Ezri meet M-Jadzia (she was off the show but couldn't they arrange one episode?) and have a meeting of the Daxes.
As for the Empire, my personal headcanon is that Kirk's intervention split the MU in two - one where his intervention brought about the fall of the Terran Empire and the rise of the Alliance (Alliance-verse) and one where it didn't (because Spock failed, because Spock deduced that destroying the Terran Empire would simply give rise to something like the Alliance, whatever) (Empire-verse). And I do wish we'd gotten to see that as well, although an episode of Voyager showed us something very much like it.