Has been confirmed elsewhere, other than MM primary and brute primary, all other categories get exactly one extra set, no new MM primary, 2 new brute primaries.
I'm more excited by the VEATs and the ability to have more than 3 open power trays. Also I believe the insp conversion was 3 smalls of one type to one small of another type, not up/down tiers.
The diablo style level ups are amusing also, refill of health and end, plus I believe you get hit with a large insp of each normal type including the res.