I think that instead of a big meta shift, we'll start to see more map/situationally dependent variations upon the meta. It'll be interesting to watch how the OWL meta evolves too now that new maps are being added into the map pool (KINGS ROW BAYBHEEEEE) and are played under intense scrutiny something like 20 times a week.
One of my favorite part about the first series of OWL was actually picking up new map dependent strategies from watching teams run them over and over again. Especially Anubis, where you get to see so many transitions between low ground/high ground.