At the moment there is really nothing to talk about but again just speculate so that is what I'd figured I'd so and see if you all want to join in. Yes, this is another fan theory of mine but hear me out, we were told that two people in particular, Lucien and Katherine always had a backup plan so I find it just a bit odd that they would die in such a cliche way, at the hands of their mortal enemies like that, so what do you all think, I personally think they could have found a way to save themselves and are still alive on earth and waiting for a big return. Obviously Klaus and Stefan are dead now so they cannot exact revenge but they know their ghosts are watching and can torture them by torturing their loved ones who are still made of flesh and blood.
Honestly I'd rather see that if they are just going to continue this same Malivore cycle over and over and over again, at least there is some potential there. There is really no potential with this Malivore story line, at least I don't think so.