There’s nothing that the Wonder can do in Hawaii, it would have to visit a foreign port and Hawaiii is far from everything.I feel like the fact the Magic only moves over for a few months suggests a closer to home option for the Wonder. I'm thinking Hawaii for October-November and then the normal riviera cruises personally. Why would they not leave the Magic over that side for longer and give options if the Wonder was really going to Australia for all that time?
Six months of Riviera cruises aren’t selling this year (and they’re super cheap too) so it makes sense to do a shorter season from SD.