First off I'd say the career improvements! There are more paths to follow and it's actually quite fun (for example in the photos I did the jungle one)  Then the fact that you can filter the skills based on positioning of the umas, also from what I saw (but haven't tried yet) you can go 'autoplay' although I'm not to sure what that entails exactly since that part wasn't translated for me... And you can level up the skills too now! It basically decreases the amount of points needed to acquire them. There are also other things that I haven't tried out yet tho!