With those rumors of Jax returning, i've been thinking: what if he, and/or other heroes who died in MK9, return as Quan Chi's revenants? They (the revenants) have already been mentioned, and chances are, it wasn't for nothing.

To me, it'd be preferable to them returning exactly as they were before dying, as if nothing happened. Returning from the dead in MK should have long lasting consequences, as we've seen with Drahmin, Scorpion, Noob Saibot and others. The revenants' designs should reflect their new state. They don't have to be rotting corpses, but they shouldn't be completely recognizable. Their intros should also acknowledge that they're revenants.

The revenants can always be given "living" alts where they look just like they used to, complete with intros where they act like their old selves.

If they're going to resurrect anyone, they should wait at least one game or two before restoring them to their old selves, if they did that. Just because death in MK isn't permanent, doesn't mean that a character's death cannot be an important part of their development.