You don't need people to be in the facility to determine that number though. I'm not going to say it will change this year, but if it does it will likely be this year. It also probably won't be publicized beforehand it will just change.
That said I'm not really sure what they changed that would increase capacity. Maybe just willing to fit more junior cyclone club passes in there due to better viewing angles with the new grading.
You don’t change change an occupancy rate or capacity on a whim. You have fire plans, evacuation plans, insurance policies to revise, etc before your formal number changes. Lot of moving pieces.