#1 The betrayal angle
'The Final Deletion' took the wrestling world by storm by its nature, and just how unconventional it was. It pitted 'Broken' Matt Hardy, a very different man than who he used to be, against Jeff Hardy, inexplicably called 'Brother Nero', based on his middle name.
WWE loves to split up tag teams as we've seen with Enzo and Cass as well as The Golden Truth, not to forget JeriKO.
If Jeff turns on Matt Hardy to embark on a singles career, as he invariably will in the future, it could cause Matt to go dark and 'break', thereby unleashing this crazy side of his. It could be a big 'money' feud, and a chance to showcase the iconic 'Final Deletion' rivalry on a bigger stage, with a greater budget.
So many possibilities for this iconic gimmick. Let's hope that The Hardy Boyz do break and that it is the best thing ever!