Wait, nothing from SEED Destiny and SEED is missing Justice? That and Gundam 00 not having 00 Gundam and Quan[T] are the biggest oddballs. They've got to get announced before launch. Can't imagine a Versus game without some of the main units.
IIRC, they released a list of series that will be in the base game.
Wing won't cover Endless Waltz, 00 only gets the first season, SEED only gets the original show. No G, X, AGE, or 0080, or any non-animated UC content outside of Crossbone.
Units from these franchises will probably be focused on in either DLC or future revisions, since this is technically a brand new starting point.
EDIT: Side note, I'm really curious about having the ZZ and the FAZZ separate, but I'm down as long as there are a few other ZZ series suits too. Gonna be weird to have two different versions of the ZZ if we can't get any other enemy suits (just pick 2/3 between the Hamma Hamma, Bawoo, Doven Wolf, Dreissen, Zaku III, R-Jarja, or Geymalk).