Eh, I never really had that feeling of gimmicks being bashed over my skull; a very large part of the nature of a man Planescape is that its a convergence of varying ideas and cultures, and I think for most people who played Torment, its viewed in a positive light.
Planescape reminds me of Neil Gaiman's Sandman setting, in that way; all these various concepts, planes of existence, gods, the seven Endless, and even average joes all mixed up in a mad scientist's beaker.
Realistically, I don't imagine that they'd want to diverge from this tried-and-true "melting pot" theme, even though/if they don't have the rights to produce a game in the Planescape setting.
Try to think of them less as "gimmicks" and more as plot devices, maybe?