Did u ever see any TRF line using Tamiya connector with stick battery??? NEVER! It must be a mid-range TA/TB line car...
But I won't be surprise if there is TRF416 or EVO5 in the work. They always in developing cycle.
After some detail check, I think this is a 415-based, belt drive TA-line. Might be the rumor 415-based TA-05.