Optic aren't going anywhere without roster moves, and they've already tried and failed mixing Danish players with other nationalities. I suspect North will have the same issue. Eventually one of these orgs is going to have to buy out the other's Danish players to create a decent team. It makes sense for that to be North.
The decision to kick MSL would be enough to convince K0nfig to rejoin North, along with Jugi.
As for Karrigan... this guy was on thin ice a few months back after failing in so many finals. They even tried to get Shox as a replacement. The only reason he's still on FaZe is because the Olof situation has bought him some time. If they miss out on the intel grand slam and the major now that Olof's back. I think it's very plausible that Karrigan will be removed from FaZe by the end of the year.