this answer is not a 100%
but regarding the emotions system, I don't really care about it tbh, funny though, the first thing a friend of mine noticed when she got sims 4 was "they got emotions now!" (and she love that) and I (already playing the game for some month) was just like "um, yeah I guess..", idk the emotions thing was never that impressive to begin with and sometimes they annoy me more than anything, so I am fine with how it is.
now the personality part is another thing...although there are some minor consequences to some traits it mostly doesn't seem to matter much.
Personally I really miss likes and dislikes.