2 days for the price of one Dollywood Tickets can be purchased at the front desk of Mountain Rentals of Gatlinburg if you are a guest. 

Is this an ongoing deal even the coming up spring (my dog ate my question mark)

Yes, we offer this all year!

Are these tickets dated, or can we use them on any date during our stay? I seem to recall your visit to Dollywood has to be on 2 consecutive days. Is this true?

You can use the tickets anytime during your stay.  Your second entry to the park must be within 2 days of the 1st use.