It would be wonderful to hear Gogo, since he would be kinda like Kefka Palazzo, but Not Evil and more Controlled than Insane, and since Gogo is random, then his voice and accent would change to fool opponents.

KIROS! And Ward, surely. I mean, what are the changes of them being voiced in crossovers though, sonce Square already said they don't really ppan on Remaking FFVIII. Anyway, I sure would like to hear Indian man talk and spill facts and reason at Laguna (alongside Ward, of course, but since Ward 1. Doesn't always appear alongside them and 2. Becomes mute later on, Kiros is still the bigger voice of reason).

Speaking of Ward, in FFVIII, Kiros is the only one that understands him after he goes mute by just reading his eyes, but it would be interesting if Square implemented actual sign language in the game.

Although, I'll give it to Gogo for also being an interesting pick.

Given we have no idea what's their gender, they should have an androgynous voice, sounding both male and female (not at the same time, of course, but like during one line they'll sound male and on the next they'll sound female, things like that). To achieve this, eitheir have someone who actually has an androgynous voice voice them, have two different voice actors, one for the male part and another for the female, or simply use voice modifiers.

That is what I had in mind as well for Gogo being They/Them @CorujinhaGamer26.