if not, here we go:
I believe that Leah should get a second chance, i mean she is the daughter of diablo himself not just some puny mortal, plus with the World stone Destroyed (was Leah Born before it was destroyed or after?) which would mean that Nephalim powers would start (all be it slowly) returning to Mortals. In the End Tyriel states that the heavens should work with the humans, which means the angels powers and resources would be at the hero's disposal. Now i do believe that Leah should get a Darker outlook and perhaps a look improvement should she return.
New thought, What if the Angels put Leah's soul through that Crystal of Creation... what was it, crystal arch? at the top of heaven. I think it'd be cool if leah came back, BUT was FAR more powerful because of her possession by Diablo. Imagine the suprise on Adria's face when her own demonic powers can't even touch Leah who is enraged and pissed off infront of her XD
Thoughts on Leah's resurrection? Trolls please she link at top :P