While not tweet-related, a poster on GameFAQs named Ch33bDragonite noticed & captured some note-worthy improvements between the E3 2014 footage and the November 2014 footage. So why not post it here!
Added motion blur (becomes more noticeable when compared in video form):
Self-explanatory:
Improved trees/tree textures:
Interesting how much still changes in that regard, even though we've seen that area for 2 years already.
He also compared some other stuff, so why not.
Better town textures:
More pronounced/better explosion effects (you have to compare the video footage to really notice it, though):
UI changes:
Further UI changes:
Old vs. New:
Also,
NPC's react when you walk into them and
loads of sound-effect noises in the Japanese November 2014 footage!