Decision-making aid Tarraco as 190 HP TSI or TDI

Hello together, we are currently driving an Octavia RS TDI 190 Ps manual transmission and would like to switch now after four years to a vehicle with four wheel and DSG. From the appearance / price we stayed in the VW/Skoda/Seat – warehouse at the Tarraco. We like the car, only we are strongly superior, whether now the diesel with 190 Ps or then rather the TSI with 190 Ps. Our driving performance has decreased strongly in the last two years. We are at max. 15000 Km in the year with then also a lot We also have a caravan 1500 kg with which we drive approx. 2500 km a year. Would you like to hear your opinion only because of the woWa on the diesel or then better take the petroler and save a few euros in the purchase?? A consideration would then also be to wait for the Tarraco hybrid. But it will certainly be in the purchase a lot more than the price of the large diesel. Would I be above your opinions it is a help for our decision.