NYX may stand for New Young X-Men
If so, I hope it's finally an Academy X/NXM follow-up instead of a roster of all new characters save Laura. That would be overkill on top of the new ones we're getting in Emma and Kate's book.
With this franchise and its habit of introducing a new generation every decade or even more often, New Young actually makes sense when there are "Old Young" characters like the New Mutants, Gen X and now Academy X
On a more serious note though, I thought along the lines of attaching the New prefix to a pre-existing title like Young X-Men like they've done to other book titles in the past.
I get what you mean But it would be funny to see the NXM as the "new" Young X-men when they predated them (and some of the YXM were also NXM).
But I think we can all agree that it would be awesome if the Academy X generation gets some much needed representation in NYX.
The original NYX cast certainly doesn't have the same commercial appeal, IMO.