I wouldn't worry....some A-tiers will try to squeeze into the schedule, some will go on their own timetable and be big regional events.
An A-tier around here, while the pro tour is on the west coast, might lose out on the top dozen players, but would be a big draw to the regional pros who don't travel full time.
An A-tier around here, while the pro tour is on the west coast, might lose out on the top dozen players, but would be a big draw to the regional pros who don't travel full time.