I think it will make for interesting dynamics. Michelle Obama seems like the kind of person who, now being the most powerful woman in the world, will not want to give that up easily. While a story like this often ends a marriage, Michelle is forced to remain in hers if she wants to keep the power and lifestyle that the Obama's quickly became accustomed to.
-PJ
I hope they both go Bad-Bad-Leroy-Brown on each other, whip out the knives, and have at it Chicago-style.