When I read that TTD bonus round description, my first thought was that they're going to try to copycat the updated Press Your Luck format, and if they are, it's going to go very poorly.
I can see it work thusly:
They keep playing the nine numbers, get the money, avoid the dragon deal, only for increased stakes each time. Possibly more dragon squares at different plateaus. Avoid the dragon X amount of games, win the top prize. You can walk away with what you get from successful rounds every time you beat the dragon.
Whether or not it can be as interesting as PYL's remains to be seen.
I will say I've come to like the PYL '19+ bonus. The family members aren't as cheesy as it is on other shows. And it's still the friggin' Big Board, which keeps it interesting.
EDIT and OT: Do we know the procedure for picking the personal prizes in PYL's bonus? What input does the contestant give; i.e. how specific is it? Cause I'm thinking, if I go on the show, research prices and suggest super expensive stuff in hopes of it helping to reach the $500K goal. But...if they just ask for ideas instead of specific prizes instead...forget that.