First of all, I want Eyedol above everything. Then, Eagle could be really nice.
Although Mira is the only “new” character(not guest, not returning), every character has a totally new moveset. I mean, Gargos doesn’t looks like original Gargos at all, same goes with Tusk or Kim(they resemble them in some way, but they are very different), and Rash and Arbiter are new to a Fighting game franchise.
There is no difference in creativity between, for example, Aganos and Gargos. Yes, gargos existed before, but his moveset it’s totally new and fresh, they had to face the same work with Tusk, Kim and Gargos than Aganos, Kan-Ra, Hisako, Aria or Mira.
My point is: If they bring back Eyedol, he will have a totally new moveset, and although he can be similar to his former self in appearance(two headed cyclops it’s expected), he surelly will have an unique touch. Look at Gargos: He is very diferent, but still “is” Gargos somehow.
And Eagle, well, he always was there in the lore, but now we have the possibility to see him. I mean, it would be criminal to not put him in the game. You could only mantain him “dead” inside Fulgore(as many thought), and nobody would complain. But hint him alive in the novella and don’t make him playable it’s ridiculous. My money it’s with him as one of the two remaining characters.
To summarize:
-Eyedol: It’s a must, only remaining character to come back, his fans are eager to see him(myself included as one of his bigger fans). I’m sure IG will give him a unique and awesome new moveset.
-Eagle: It would be ok to not being in the game… until he was showed in the novella. Now he has to be in.
-Another guest character: IMO a bad idea. Rash and Arbiter are great, but something pulls me off from playing with them. I prefer KI characters
-Shadow Characters: Bad idea. Shago it’s ok because he is unique, but pulling out another shadow would be weird. I know there are no clones in this game, but making a character based in an existing one, even with a different(yet similar) moveset isn’t a good idea IMO. One(Shago) it’s ok. No more
-New characters: Always wellcome, but please, bring Eyedol back first, and then Eagle, now we know he is alive.