Teddy's love life is about to get more complicated according to TVLine.com! Dr. Andrew Perkins (played by James Tupper) is coming back to town and he and Teddy will resume their love affair where they left off. This will lead to him making her a proposal. It's unclear at this time if it's a marriage proposal but it's definitely a proposal related to their relationship.
Since Scott Foley, who plays Henry, was cast in a lead role in a pilot, and because it's always a possibility that GREY'S decide to make Tupper's role a major recurring one or even a series regular one, my guess is that Teddy will accept whatever proposal Perkins will have and will ditch Henry. Then again, since Henry is really ill, another possibility would be that he will die before the season ends.