Sorry if this has already been posted, but I had an interesting theory about her combos:
Depending on which D moves are currently in the queue, and which one that will be the next one, she may have many different BnBs.
Basically, since each D move has different properties, there will be different things that you could do off of them, and some could only be used as enders, so her combos would have to vary in order to maximize the combo potential when certain D moves are available.
There would be even more options if you begin a combo with only one move left of a particular D move, as you could continue the combo into the next D move, and at times you may not be able to.
If you have meter, things can get even more complicated (which imo is a good thing), as certain "super" variants of D moves may be more useful in combos than their normal form.
This would result in her having many different BnBs, both with and without meter, and would require the player to be very aware of both their current and upcoming options in order to play her most effectively. (A technical character that would require a good amount of memorization, but a very fun payoff imo).
Again, this is just a theory, but it looks very plausable as of now. More vids/her release will let us know for sure though. Sorry about not posting this sooner, as this seems like a very important idea for her gameplay (if it does turn out to be true).
BTW- I wrote this kinda quickly so if it is confusing, I can elaborate on it in more detail.