I FOUND IT! I finally found what it will be. I can't believe I didn't think of it sooner. Let me explain what I'm talking about some already know about Ninigi.
Kishi loves to take from mythology almost every fight and Uchiha techs come from mythology. Susanoo,Amaterasu,Izanami,Izanagi,Tsukoyomi, the 3 sacard weapons Itachi have can all be seen in mythology and 1 article however there is 1 left we have not seen.... NINIGI. I think it was on storm generation or somethin Madara used a backtrack jutsu. A thread reminded me of it and yesterday I was think of what could Ninigi be and had no clue but now I do. I looked it up and It will be used in Madara's fight with Hashirama. How do I know? take a look at this http://www.britannica.com/EBchecked/topic/415743/Ninigi
The article mention earth(element of wood), Yamato (a wood user in Naruto but I think the name mean wood or something related to wood) These may seem like small thing but trust me the Yamata no Orochi was defeat by Susanoo seem like a small thing from mythology but look what happen Orochimarus 8 branch tech was defeated by it. trust me it's a sign of Ninigi being used on a wood user or possibly by a wood user. Nice find... I know :D
Wait a minute.......*starts to think* could it be Sasuke's? grandson of Amaterasu....Sasuke has a talent for Amaterasu..hmmm (completely mind f*****)