I remain mixed about Natsu. I think she is unnecessary, she's only here to draw in the crowd who likes young and somehow super experienced. Or the term I've heard other people say "Naruto-bait".
Personally, I can't wait to see Taki again in the F2P Soul Calibur Lost Swords. The game might suck story wise but, we'll see about that. It's Taki at least and for that, I stay positive for now. Oh, and Lizardman because lizurds ar cute.