There has been no announcement re the fleet swap, as there is nothing to announce ie no changes from the plan to replace the TT A320's with B737s. There was a rush to get 3-4 B737s on the TT AOC for the DPS flying, but now that's not happening at least one of those 737's will return to VAA/VAI and will operate with no airline markings on it, as it will eventually go to TT.
VUD is still doing trying flights at TT.