And Wyll? Wyll is a fraud and i quite honestly dont believe single story he tells about him ... and i really, really, REALLY hope that later in game we find out that he actualy never done any of those heroic deeds, that it was all just stories Myzora was telling discuised as Bard.

I always thought that his former Flaming Fist captain maybe knew or had a suspicion that he is a warlock, and that the fraud part was about Wyll not achieving all his heroic deeds on his own.
But I like this interpretation even better. If Wyll's stories would be mostly made up or highly exagerated, this would be a really interesting start for a character development, becoming the hero he pretended to be.