He has crossed back over to his proper universe to return to Stark Towers in New York City, it was nice to be home. He still knows that he will be crossing between two realities to help with the efforts of helping that Jack's Earth.
It was still nice to be home. "JARVIS did you miss me?" He asked the home AI, that gave him a warm welcome home and information about the new Torchwood. Tony looks a little dumbfounded that the towers would be used for something else. "I think, I think this is when I can use a drink right about now."