I think everyone has read some crazy theory, wether they believe it true or not. Wether they are serious or not, they can sometimes be fun to read as long as the theory is taking itself a bit TOO seriously and there's absolutely no backup for it. And there are a -lot- of theories regarding the the story and lore of Warcraft, many that can be quite interesting!
Do you have any crazy theories you'd like to share - serious or not?
I do have one, not too serious, but I like the idea just to have people go "Nope nope nope nope nope." Right now there's the talk about Sargeras wanting to Illidan's body as an avatar. There are also a lot of people discussing about wanting Sylvanas to go through some sort of redemption story, or at least if she can sacrifice herself somehow for the sake of her people.
So, how could the expansion "Legion" end? Sylvanas somewhat 'dies' and then appears as a Banshee once again, losing her body. Now, banshees can possess bodies - and in this case, there's a certain body of Illidan which is the best shot she's got.
Already I can imagine people liking Sylvanas for her looks will go "NO!" (and possibly others) but keep in mind! Xe'ra, Illidan's No. 1 Fangirl portraits Illidan as the most amazing, jolly, wonderful person that ever graced Azeroth - so, it has to be good, like the Light... Whereas Sylvanas, wether you think she's evil or a 'needed evil', is sort of like the... Dark.
So, the body of Illidan, the child of Light - the spirit of Sylvanas, the child of Dark.
Thus, "the child of Light and Dark" that will end the age of demons, as Xe'ra said it - while telling us how horrible we players are. Unless you're a Demon Hunter.
I seriously hate that Xe'ra.
So, dislike the theory a lot? Well... let's be honest, I SERIOUSLY hope this won't be the case but at least I think it's better than the whole Xe'ra storyline with what they do with Illidan and portaits us heroes as the bad guys with hate filling our hearts. But I wouldn't put it past Blizzard of trying to pull it off at this stage.