The data migration from the old forums is expected to finish by the end of September, progress and technical questions can be followed in this github issue.
After reviewing the technical status of the old forums and the migration work, an agreement was made:
By September 30th 2022 the old forums will be retired, communities will be actively asked to request a category in the new forums as soon as possible to be able to define their moderators in advance. An announcement will follow in this forum and the old one, as well as communications on all proper OSM channels.
A proposal will be shared this week, including information about requirements to be a moderator, process to suggest new ones, a proposal for health-checks and how the communities can own this process themselves.