I've thought the whole time....
World Discovery (the reality and fantasy of space exploration)... M:S, CR and something planet based for WoL
World Nature (the reality and fantasy of exploring our natural world)... Land, Seas, JoW
EPCOT Center (celebrating human imagination and ingenuity).. Entry, SSE, Celebration Gardens, Test Track, IMAG, Oddyssey. (Eventually redo CommuniCore Hall into something more in line with the original park's ideas).
This would have at least made sense within the "lands", assuming you did meaningful separation between IMAG and The Land and TT and M:S.