The plan is to eventually retire this redmine instance and switch this forum into read-only mode. A forum with a more modern UI and (most importantly) better anti spam measures will replace it. It runs on a dedicated server, so it's not tied to any other project.
Issues will be managed through GitHub in the future.
There is now an opencollective account to collect donations for project related things (hosting, domain, maybe one day even test hardware purchases).
There have been lots of changes to reduce the "single person responsibilities", so with the new changes it should be possible to continue operation and development even if one of the administrative members disappears.
Additionally the way releases are done will be changed to rolling releases. No more backports.
I don't think that post was made as a "statement of intent", it seems more like a "things will get better soon". After all this isn't super-secret stuff, and a proper announcement will be posted here first once everything is ready (which will take more time).
@Jonas: If you want to join the team that gets the new forum running you're more than welcome to do so!