Being off the provisional list isn't automatically the end. The list is provisional precisely so the community can raise concerns during the review window, which runs October 9 through 15. If anyone spots an issue with a selected project, that's when it gets sorted out, and in theory a spot could open up. Realistically though, that window exists to catch problems with the winners, not to swap in new projects, so I wouldn't hold out much hope there. The final list drops October 15, and they've said all inquiries get answered by then.
On feedback for rejected projects: from what they've posted, nothing is promised. They only committed to responding to inquiries sent during the review period. My suggestion is to email them directly before the 15th and ask outright whether they'll share reviewer notes with non-selected submissions. Worst case they say no, but if you don't ask, you definitely get nothing. I've found smaller community teams are often more willing to give a line or two of feedback when someone asks politely and specifically, rather than demanding a full rubric. As for a Phase 2, there's been nothing announced yet, so I'd treat it as possable but not guaranteed. The original call for submissions ran a few months, then review, then winners, so if they do another round you're prolly looking at a gap long enough that refreshing the site daily will just drive you nuts. What I'd do is keep working on the tool in the meantime. A profile organizer is exactly the kind of thing that gets better with real usage data, so let people on the forum beta test it, collect the pain points, and if a second round opens you'll have a much stronger submission than the one that just missed. And if no second round ever comes, you've still got a useful project with actual users, which counts for something. Also, don't take it too hard. With over a hundred submissions and only twenty spots, plenty of good projects got left off. Not a reflection on the quality of the work.