Eh I don't think it will crash and burn, people like that stuff even though it sucks. Just look at the success of WoW.
I'm not sure I agree classes are flawed in and of themselves, I mean when you think about UO templates they are essentially classes, it's just that UO allowed a high level of player skill to affect the outcome of combat. There are some pretty unbalanced matchups in UO, for example dexer vs a parry/heal mage.
Rochambeau is the basis for a ton of video game balance design, it's just some games are better at hiding it than others. I do agree that any class should be able to kill any other class, however, I don't think it should necessarily be an equal matchup for all combinations.
Combat restricted to factions is the major suck ass for sure. I for one think AoC looks more promising, atleast you can control cities and siege them and such. They might even have FFA servers, woot. Speaking of Shadowbane, they just wiped all their servers and started fresh, I was thinking of playing again. They have fixed most of the bugs and balanced the game pretty well, or so I gather. Would be fun if we got some of the old Und there. My main gripe/lack of interest in mmos these days is I don't have anyone to play with. As a grizzled mmo vet I can't stand meeting new people, 90% of mmo players are complete idiots and I just don't have the patience to find cool people anymore.