I'm not sure if the mugs have changes design.
Each resort has their own style. Yes,
the deluxe resorts do have a mug program but
it seems to me from previous experience, places
to get refills are limited since deluxe resorts don't
have a food court type of set up. (still worth the
cost - I usually use my teenage son as the "runner"
and he gets all of our refills).