I think I'd be more surprised if we didn't see Mikoto in 6.0 considering that Sharlayan is her homeland and she's one of the few people from there we know other then Krile who'd likely oppose the Forum's stance of non-interference, plus her sister was noted as having a more open disdain for Sharlayan's policies so she might show up as well.

I'd assume there's probably going to be a small faction of pro-interference Sharlayans who are actually willing to help us in some manner.