I know you’re not supposed to believe everything/anything you read on the Internet, but courtesy of SlashDot, this post came to my attention, which may be of interest: Google Groups has been left to die. The blogger is suggesting google Groups may be headed for the Google Graveyard. Of course, it may have to double-bunk in a grave! Jenkins Community does seem to make extensive use of Google Groups (i am a lurker/searcher on several).
I know there’s been a lot of prior discussion on where the community should virtually congregate, collaborate and share, both before and after the creation of the Discourse forum. I’ve tried my best to defend people using S/O to get help there with some success.
Nevertheless, consideration should be given to the what-ifs such that no one is surprised, any migration can be done in a prepared fashion, with key information and history preserved. Discourse seems to work well and with category expansion could work well, but I’d leave it to the Governance and Power Community to provide a path.