The clip did say they're 50% of the way through but I have my doubts too. Bella said somewhere that she doesn't think they'll be done filming until next year, due to a combo of covid protocols and the scenes itself which are challenging to film. I want to say BPS took 2 years to film?
Anyhow the movie should hold us over. I'm surprised they haven't released the trailer or any promo on that considering it is set to premiere in about a month, around songkran I think? Interested to see that cause the only picture released so far made me think Pope is the one time-traveling (where he has sunglasses on) and getting to play the more comedic fish out of water character to Bella's straight man, a change from the lakorns.