A lot this has already been mentioned, but I'll jump on the bandwagon, too, so you know there's more of us:
MORE, PLEASE!!! More skills, more puzzles/tasks, more island events, more island to explore. Finishing all sixteen original puzzles ought to open up a whole new area of the island, with new puzzles & tasks, new food & water sources, and new skills.
BTW, I find it interesting that the game logo has "A New Home" hanging off a rod- or stick-like line on the left side, and there's a similar line on the right side...just waiting for a sign to be hung from it announcing the new expansion. ;-)