Board Thread:Warhammer 40k General Discussion/@comment-108.51.155.155-20131208175717/@comment-202.138.20.122-20140505033450

In my view  it will be one of the surviving primarchs who will kill Abbadon, powerful as he is he is no match for a primarch. The only other possible contender would be Garviel Loken if he is still hanging around somewhere. Either way it wouldn't likely happen until the endgame of the imperial era in the lead up to the Emperor v Chaos Gods final battle, after which comes the new era with chaos badly weakened & the empire shattered by a combination of the loss of the astronomicon & the corrupt hierarchy collapsing under it's own weight.