Tasks deserved to be brought back
1) S6 Xian Key Roadblock
2) S11 Teammates' relationship task
3) S12 Final Roadblock
4) S3 Swiss Count the Money / Run the number detour
5) S5 Carvier Roadblock
6) S6 Hungary spicy soup roadblock
7) S9 Australian Prison Maze roadblock (or task similar in nature)
S11 Letter searching roadblock
9) S14 Chinese Waiter / Beijing Opera detour
10) S17 Hong Kong fake food roadblock
11) S18 dinosaur roadblock
12) S20 Bollywood dancing roadblock
13) S22 Sandcastle roadblock
14) S25 Flag detour in Malta (change it into a roadblock)
15) S28 Windows of the world roadblock (make it as final challenge of a season)
Unfortunately we are not likely to get the switchback if No more TAR in the future