I mean, I get where you're coming from, but at the same time gc is doing massive overhauls because he's improving as a programmer/designer. In order to make plans for features to become a reality, it's going to happen, especially on a game like this that has so many sim/stat tracking elements baked in.
It might be nice though, if not a direct save translation, at least an "achievement importer" that let you keep all your statistic altering goodies, so you don't have to grind dominance or fetish values, that at least should be easy enough to translate as variables universal to any version of the game.