Well I feel its a bit obvious at this point the final battle should and probably will be Natsu and Gray VS END. That is if END gets revived of course. With Gray's demon slaying powers now and Natsu's ability to eat flames they would be perfect against END now who is a Flame Demon. I think it was also hinted when before Tartarus was introduced how they showed Natsu and Gray going on a mission together.
There will also probably be a conversation where END starts bad mouthing Igneel and Silver for both trying to kill him. That will probably anger both Natsu and Gray and the real fight will start. I just hope there isn't some kind of friendship power up during this fight. Maybe instead one of them get badly injured by END and that helps the other have the will and strength to defeat the demon. Either way it doesn't really matter to me how they defeat END.
Your Thoughts?
There will also probably be a conversation where END starts bad mouthing Igneel and Silver for both trying to kill him. That will probably anger both Natsu and Gray and the real fight will start. I just hope there isn't some kind of friendship power up during this fight. Maybe instead one of them get badly injured by END and that helps the other have the will and strength to defeat the demon. Either way it doesn't really matter to me how they defeat END.
Your Thoughts?