Just to state the official line here, Dont distribute mods that use assets from other games, private use if you own both games is fine but releasing a mixed mod will probably get you banned from these forums and the mod hosting sites.
Well he said it was content from mods, not official content from oblivion and he never even mentioned anything about releasing it. So pretty sure hes talking about importing things from oblivion mods to skyrim for personal use.
On topic: I'm pretty sure theres a way to do it sooner or later, if not now. Probably will need a converter of some kind though, not 100% sure though since modelling isnt my thing.