So from what I heard (and kinda seen with the gameplay videos):
1. RA being -13 kinda sucks but some i13 punishes did kill in T7 so I think it's possible that they might balance around that.
2. Magic 4's don't launch. Huge nerf to characters like Lee, Law, Jin, etc.
3. No more knockdown wake up kicks (including spring kicks). Makes sense. I'm just glad the low no longer launches. That was kinda dumb.
4. Chip damage sucks. Can imagine going up against pure rushdown characters like Hwoarang and such.
5. Possible movement nerfs to some characters (King is a big one so far but I hear Kazuya's 50/50). I dislike this heavy.
6. No running tackle and new way to run. Don't mind fully. There were times where I got a running tackle but wanted running shoulder & such.
7. New combo methods. Ngl it kinda looks Tekken 6 like. Gotta see how the wall carry is before I can have a better verdict.
8. Balance changes. I'll care more as time progresses.
9. Special intros. FINALLY. Near every fighter has had this except tekken (Not counting the tekken tag games).
10. Wall bounce might be gone. Don't know fully but that other wall mechanic from T7 that was introduced last season I think is still there. I kinda hope its gone but idk.
11. Heat mechanic doesn't look terrible but it kinda makes Tekken look all over the place which I'm 50/50 on.
12. It looks like Jun takes some damage from some of her special attacks. Kinda similar to Dark Mewto from Pokken if I remember correctly. Kinda makes me wonder if other characters have this as well?
My biggest question now is:
1. What does counter hitting look like for T8 because if movement is nerfed and magic 4's don't launch, what would be the way of counter hitting or getting people off of you? (Idk if b1's counter launch either for King/Steve)
Overall the game doesn't look half bad. Graphics are high quality. Feels vibrant like the older tekken's compared to the grim graphics of the newer ones. Gameplay's hit or miss but I think as other characters are announced, more questions would be answered.