The original MZ-2000 could read and import Roland styles. I didn't see any mention of a feature like this in the new MZ successor. IMO Casio would be smart to license the style library from one of the "big boys." With the price tag some folks might want more variety, or the ability to re-use favorite styles from their current board.
I'm open-minded, but also a little disappointed because the style compatibility and a few parameters related to style control are missing relative to its legendary predecessor. The market will decide if it's worth what they're asking (and possibly whether there will be a TOTL version in the future!)