I mean, Jessie and Edgar are flirty characters, and I have a feeling Edgar's Force is related to him flirting with her (surprised they didn't pick any other girl though). I don't "hate" Edgar, I just can't stand his flirty nature towards Terra, it's like Zidane during that scene before the Festival of the Hunt where he says Vivi will get a date with Dagger if he wins. Like, people, they have no freaking idea what love is, give that sh*t a break, and Vivi's a 9 year old child!
Anyway, yeah, I'd really like if they add Nero and Weiss, eitheir as separate characters, or one and the same (perhaps consider the end of Dirge of Cerberus where Nero is now only present in spectral form, so he kinda exists within Weiss. I personally like to imagine they manage to get him back after the events of the game.). There's only one thing I ask for if they ever are added, and namely if they are added as separate characters: make Nero's Force ability be with Weiss. The only other option I openly accept is Vincent, because of the whole tainted livestream and darkness stuff and the fact they're both gunners, but Weiss is still the first option. As for Weiss's Force ability, I'm a little more open because Weiss is also a bit more reckless and "free" than Nero is, so I wouldn't be surprised if his was with someone else, I just hope it's with another samurai or even someone who got brainwashed/controlled (like Golbez, for example).
And while there's a bunch of main characters missing from the different games, like the characters from Soul of Rebirth, the 3D Remake characters and Aria from FFIII, quite a handful from TAY, Xexat and Kelger from the Dawn Warriors of FFV, Gogo and Umaro will forever be out of the picture it seems, the FFVII don't even get me started, just the Turks make for a lot of additions, then there's Genesis and Angeal, Red/Nanaki, and the remaining Tsviets, basically, Kiros and Ward don't exist it seems (Laguna does mention them during Auron's Lost Chapter, so that's something good at least), Amarant headed out, Tantalus is too busy (Marcus was playable in Recod Keeper) and personally Lani could always be another added character, Fratley too perhaps, Rikku like mentioned also doesn't exist, and I can't remember if Paine is there already, if not there's that, then her forends Nooj, Baralai and Gippal could always do for fine additions, no idea on FFXI, but Zeid is missing (he was playable in Record Keeper, and actually he was the only playable man), Naja too, from FFXII only guest characters like Reks, Reddas, Vossler and Larsa would eventually be added, from Revenant Wings there's still Filo and Kytes (Llyud makes a mention to them in his Lost Chapter and I do wonder if they'll ever be added), from FFXIII, if anything only Nabaat (she was playable in Record Keeper), and perhaps the NORA members, as they are guests during the very beginning, but perhaps not, you know, no idea when it comes to FFXIV, I believe there's many characters that could be there and aren't, but it's not like I know them, from FFXV, Iris and Ravus come to mind (they both were playable in Record Keeper, Ravus being one of the earliest additions), from Type-0 everyone is there, even Kurasame, so that one's complete, from World of Final Fantasy there's the main characters and Enna Cros so it's also complete (as the remaining characters are the rest of characters from the franchise, just chibi), no idea on Crystal Chronicles, but Mira quickly comes to mind (I've seen her design, it's really cool), but there's definitely a lot of missing people from that series, then there's Tactics, which has only Ramza and Agrias so far. Characters that are missing: Delita, Ovelia, Alma, Rapha, Marach, Luso, Mustadio, Melliadoul (this more in terms of playable characters), there's the whole Tactics Advance characters (Luso is actually the protagonist of TA2, but he is an opticional character in Tactics War of the Lions), and still some extra story characters, like Zalbaag and Isillud. Tactics is the weakest realm in Dissidia Opera Omnia so far and that's a big injustice for me because that game was chef's kiss.
I have heard of them shutting down First Soldier. Apparently, it didn't turn out what they thought it would. The game is barely 2 years old, or 1 years old. Oh well.