It is stated that the Moon's Eye Plan wil be a collective genjutsu via tsukyomi. However, is a world of illusion the ultimate goal of Madara?
Izanagi has the ability to create from genjutsu.
http://www.narutobase.net/manga/Naruto/510/10
http://www.narutobase.net/manga/Naruto/510/11
http://www.narutobase.net/manga/Naruto/510/12
Madara and Obito both have senju plus uchiha dna, so they should both be able to preform the jutsus. The Izanagi can make the world real and the Ten-Tails' enormous chakra can also fuel the Izanagi (and Izanami). Then the Izanami would serve the purpose of making the world perpetual (the dream world's ability to persist in reality).
http://www.narutobase.net/manga/Naruto/587/1
http://www.narutobase.net/manga/Naruto/587/2
Obito may not know about this, but Madara's true goal could be to create a new eternal reality, not a dreamland of winners. However if Obito did know about this he could create a "real" Rin. If my theory is correct, would Kamui, Sussano, and Koto Amatsukami also be involved (since like tsukyomi they are ms technique)?
What is your opinion on this theory and/or the dream world?