I heard by the Summer of 2023 the path will be open...hopefully its true planned on a dinner at Citricos after a day at the MK and wanted to walk the path back to the GF
I have friends who booked GF in the fall and were notified that the walking path could still be closed during their stay. Not sure if that's just a precaution/CYA that Disney is taking so that if something is running really behind schedule, they're covered??