As the smoke from the Earth-shattering success of Joss Whedon's 'The Avengers' starts to clear, the focus returns to the followup Marvel sequels. 'Iron Man 3' recently began production in North Carolina and now it seems 'Thor 2' is starting to pick up steam as well. Months ago it was reported that Alan Taylor ('Game of Thrones') would be taking over as director and now it looks like Mads Mikkelse…