Also, as others note, in the Women's team arcade ending, Jennet even talk about how she was going to join, but didn't this year. Soooo....
Pretty much all those girls show up in the ladies team ending too. This doesn't mean they COULDN'T appear, but... it's really not much of a clue, just a possibility.
I'd be one of the first to place Xiangfei on my team, if she made it to XIII!