Well the fall of Ayuttaya is about 70 years after BPS isn't it? It would be around Neung Dao Fah Diew' s time so Prom Likit should still be peaceful. HoweverYeah I'm not sure about part 2 especially if it picks up right after the end of BPS. Part of the charm of BPS is that its a rom-com which works under that peaceful time in Ayuthaya. But the eras after weren't as peaceful from what I've heard.
Also didn't the writer originally estimate it would take her 2 years to write it? Now she'll be done by the end of the year? Bad sign no? Lol.
I wonder if they will follow the history of Prajao Seur. It wasn't very pretty