Well, actually making scenes scenes replayable isn't nearly as much work as making that epic scene, so that's what I'm doing now.
However, I do plan to add that epic scene at the end of each characters story, both to indicate the character being finished as well as having a reward for completing her story, but like you said, that won't be for a while.
Re-using the poses from that character's scene is a good idea as it would save a ton of time and by offering different angles (and perhaps even settings and outfits) it could still offer enough new content.
Thanks for the feedback
@Asphyx!