That’s a good point about the sinking fields.
and I really hope to remove lightspeed skipping, even if their reference to it has to remain. One could assume it means something else. adding additional planets would make even less sense. Hyperspace travel is not instantaneous, so lightspeed skipping the way the movie the pics it to me and he just skips along in the same section of space. If I skip rocks on the surface of a pond, the rock doesn’t bounce around to New York, Paris, or Tokyo.
I don’t think removing it will have anything to do with reckoning the last movie, because in that movie it required a large device on board an enormous capital ship to function.