That guy is not Conan.
I beg to differ. I can't think of a current actor that could play the role better! Are you familiar with his Stargate Atlantis character Ronon Dex? Big, quiet and bad-ass. Dex was a bit smarter than Conan but Jason Momoa could easily pull of big, quiet, dumb and bad-ass.
He's great with a sword as well.
As far as the story... does it really matter?
I'm definately looking forward to this one!