Thread:Talk:Flow Portal/Talkpagespace using administrative processes/reply (14)

There's Flow Portal/Use cases which might be what you are looking for. I don't believe there is a detailed roadmap/timeline, at the moment. There are other interesting/insightful pages linked in the sidebar, though. (Bear in mind that all the docs are brainstorming-notes, and many are more than a few months old, so they are not definitive at all.)