Can tobi be obito because obito is azuna? Didn't zero have a row with zero Phoenix about izuna possible knowing soul transference Ala orochimaru? Is that what some people were suggesting? Izuna became or took possession of a young uchiha?
Hmmm, well, i guess if izuna has the suggested victim angle then obito was his attempt to find the next generations redeemed or changed better, beyond the conditions which allowed for his personal tragedies as madaras brother. Also, it was a convenient way to keep close to the 9 tails by becoming the subordinate of the jinchuriki's spouse. Other than those 2 reasons i can't find myself getting too excited at the wild idea. It does strengthen the probability of madara orochimaru ties even more than before with so many codependent facts, overlapping of jutsu functionality, and ofc dual purpose experimentation to grant each the same powers but for different and possibly opposed reasons.