Isn't there an issue now with Will and Mac marrying? Something along the lines of conflict of interest? It's all I could think about when they announced their engagement while Reese was still in the room. Heck that moment he said something to his mom during the celebration further made me think of this.
Not that I enjoyed the nice ending of the episode, but that was on the back of my mind. Perhaps it will be somewhere to go in Season 3?