From the horse's mouth, the absolute most number of teams the SCCC Campus site can accomodate is 45 teams. I'm not sure why they'd limited registration to only 35 teams, but it looks like they're letting in local teams now.
The new additions are local, as far as I can see, including two rookie teams besides ourselves. I don't know if that's calculated or a random occurence, though.
At any rate, I'm happy to see the regional shaping up to be a good one. The Long Island teams are all maturing, and we've got a lot of nice, well known visitors like Rage and the Bobcats
It should be fun.
Oh, and one other thing. . .I have a feeling that the Pacific Northwest regional might open up to more teams. I remember when we were in the early stages of planning the first Long Island Regional in 2000, we were told the minimum amount of teams necessary for a regional was 24. Right now, there's only 20 spots at PNW, with 4 additional on the waiting list.