I just hope we get a bit more story this time. While X was the best game mechanically IMO, I felt they relied TOO much on that. Seriously, those monster introductions were just embarrassing. Still had a ton of fun with it, just not as much as 4U.
Honestly, though, I'm still getting because of that flagship monster. Freakin' JET WINGS. And then there was whatever the heck that huge freaking MECH was.