Given the new tectonics, I am going to have to work out a new method of determining sea level. The current method is too noisy and generally destroys any continental semblance that the tectonic plates are working into the map.
I will keep the current method of sea level tweaking as a way for the player to break continental maps into island and archipelago maps. It will stand as the Uniformity setting for the sea level.
What I will likely end up doing is taking the tectonic plate boundaries, and expanding them outward to grow the oceans. So a map with very low sea level will have large landmasses that are separated by little to no water along the plate boundaries. A map with semi-high sea level will look more like the Earth with plate boundaries that look like the Atlantic Ocean. One common feature of Tectonic Plate boundaries is that they almost always have water above and around them. Part of Siberia and India being the 2 primary exceptions.
The challenge will be in growing the plate boundaries out in a non-uniform manner in certain cases. A fat ocean buffer on one side of the plate, and perhaps non-existent on another side(look at Africa on a tectonic map).