Thanks for the ideas.
We already removed two frames a month ago and replaced them. The bees have filled out one face of each of the new ones.
We can’t move frames up as we have the flow super on. I think we’ll go ahead with a small split- especially if we see activity in the queen cells.
That way if it is swarm we will maybe prevent it and creat a new colony in one swoop. If it’s supercedure the main hive will have at least 5 new queens to choose from. There is good weather ahead after much rain the bees have a lot of pollen stored but little honey.