The prospect of gay marriages being recognized in Tennessee seems more likely after a ruling in Kentucky last week. Earlier, an Ohio federal judge had ruled that state has to recognize gay unions performed in states where it is legal. Last week a Kentucky judge did the same.
Both Ohio and Kentucky are in the U.S. Sixth Circuit, based in Cincinnati. So is Tennessee. An appeal in both the Ohio and Kentucky cases goes to the Sixth Circuit and a decision there would also apply to Tennessee.
Given these two cases and a similar ruling in Virginia last week, it is likely the cases will wind up in the U.S. Supreme Court for final resolution. Tennessee has a constitutional amendment in place that forbids the state recognizing gay marriage.