Soul
Yôma kanryou!
I'm talking about all of Pyrrha's combos, they're all different from Sophitia's. Biggest example (if I know it correctly from the top of my head) is 6B, 66B Brave Edge, 22B A+B+K. Literally all her combos (I can only think of that one though)
I don't think it would be a waste, by the sounds of it Hoshino wants SCVI to be more technical like SCIV was so they would make Pyrrha a lot better than her SCV variant and stray further away from Sophitia's moves. Remember, when Cassandra first appeared she had A LOT of Sophitia's moves but her combos where unique. Now Cassandra is completely different. I can see the same think happening with Pyrrha. Especially since Hoshino loves the Alexandra girls.
Well sadly all these combos consist of moves that Sophitia has.
I guess you're talking about the arrangement of the combo.
I don't know how the community would react to the addition of another Sword + shield type fighting style.
Personally i think it's too much to have Sophitia,Cassandra,Patroklos,and Pyrrha in one game if the roster is as small as it usually is.
But that's just me.