Keyboard yes, mouse no afaik.
I'm sorry I don't know what afaik means.
Another question though. How will voice chat in game work, if any? Will we all just have to be on vent or mumble or something?
As Far As I Know.
No in game VOIP, Mumble or Vent is the solution for that. There are mobile apps for both if you have a smartphone.
Thank you, I learn something everyday.
I hope the ps4 party chat system could be used with this game when it drops. That was one of the worst things about the ps3, voice chat was terrible. It never quite worked right, no matter what game you were playing. Suffice it to say, I did not expect it in FFXIV.