[quote=@mattmanganon]
[@King Kindred] So, i do have to ask what is the exact story we've got going on with the origin of Keyblades and the whole Ansem and Nobodies thing. Primarily because i kinda want to start doing some set up for tying Leon's story into the wider narrative, but i also don't want to contradict anything later on down the line.

Pretty much, i kinda want to do the thing Nomura categorically refused to. Make sure there's consistency in the story being told.
[/quote]

I'm not sure what Dragon's original plans were, but I'm sure the origin of Keyblades stays the same with the X-Blade and Keyblade War, with each character having their own differing reasons for being able to wield one in the current timeline. As far as Ansem and the Nobodies go, most of the game's original Nobodies are being replaced with our own. But the events of Xehanort's betrayal happens years earlier and slower to match up with the ages of the cast. Essentially Ansem the Wise will be like our Hiruzen. Aware of things, but unsure of how to handle/stop it besides putting a band-aid on the problem.(Alias)