i don't know that much about the topic why the water go to the equator, pleas some good resource about the topic, search for this is kind a mess full of fakenews and yellow press.
It was observed in other planets first: https://en.wikipedia.org/wiki/Planetary_coordinate_system#Eq...
https://en.wikipedia.org/wiki/Post-glacial_rebound
So, it could be quite possible, that even with sea level rise, crust rebound will play bigger role around poles and there might be some new lands in the sea around north pole - as it is quite shallow ocean near Russia and Canada.