I can see where a short term t would be good to lend support to help cope with daily stresses and what not for the 3-months. It might be a nice safety net to have a t in place. Knowing it would be a short term gig, you wouldn't have to delve into the deep stuff and you may not be as prone to become attached to the t.

On the other hand, do you think you would benefit from a 3-month therapy break? If so, would your regular t be willing to do Skype or phone sessions with you once in a while if you needed them?