Does anyone know how will BPIP website and extension behave when new forum software is installed?
I started to test new software and I see many changes compared with this, and I think this will break BPIP.
It would not like to lose all the goodies so easy

Impossible to say. EpochTalk doesn't even have features like merits or trust flags. Scraping the other stuff like users will depend on how it's set up. For example default settings allow showing the full user list but Bitcointalk has that feature disabled in SMF so if it gets also disabled in EpochTalk then we'd have an issue since there are no numeric sequential user IDs (or post IDs, or thread IDs), which we currently depend on for scraping.