We need a directors cut
This game is surely one of the best RPG-s out there. It has quit a few flaws but some of them weigh heavy like the whole Wild Hunt plot (Eredin, Caranthir, Imlerith), others like gameplay not that much. The narrative of the third act is maybe some of the greatest problems of the game. As stated before, too much gamers mentioned already that they are not satisfied with the characterization of the Wild Hunt villains (Eredin, Caranthir, Imlerith) and even important characters like Avallach are too wagely portraited (the same applies for Triss).
The enhanced edition could be a welcome directors cut (remember Blade Runner) that could flatten many flaws and improve much of the narrative with additional scenes, dialogues and other things essential to the storyline. It wouldn't be easy though but there are too many threads in the forums showing that we as players suffered too much from the narrative inconsistancy. We just spent so much emotions and got ourselves so deep into the lore that we have an urge for a great closing of Geralts story. Patches could fix small (or large) gameplay problems, but this game needs the enhanced edition treatment desperately. It needs not a extended edition but furthermore a directors cut that would add all the cut content from the game that was sacrificed for what reasons ever (not enough ressources, not enough time, release date postponed, and so on...).
Players have the feeling that too many things are missing and they are right (Saskia, Iorveth) and many think that characters crucial to the story were underdeveloped (Eredin, Imlerith, Caranthir). I know that the critics were extraodrdinary well for The Witcher 3, but this isn't so much about pleasing the critics but giving the players the closing to Geralts story his legend deserves.