Are Bethesda serious about this for consoles or has this just been made up?
He is making it up. Consoles have no ability to run the Editor.
Let's beat the dead horse of mods on the consoles in the thread already open
http://www.gamesas.com/topic/1340618-could-steam-workshop-technically-work-on-the-360-ps3/
Which has lots of posts about why mods on a console are not a good idea.