The total # of spots this year in the match per NRMP is 194 (16 categorical, 177 PGY2, 1 spot for someone who already completed an intern year or is from the military).
There's a Google spreadsheet that the current batch of applicants have filled out (you can find it
here). It's an impressive piece of collaborative work, replacing prior years' summaries of the interview process, program reviews, etc.
More germane to this discussion is the stated expansions reported by the applicants. Of note, this info was not filled out for all programs, so this likely represents a low estimate:
AZ Mayo - expansion to 8 residents (currently 5, +3)
CA City of Hope - expansion to 8 residents (currently 4, +4)
MD Johns Hopkins - expansion, unknown amount; minimum of +1
OH Ohio State - Expanding to 12-14 residents (currently 10, +2-4)
AR UAMS - new program, +4
PA Penn State - new program, min+4 (discussed in another thread, not actually a program yet)
In summary, there are stated plans (i.e. shared with residency applicants or publicly discussed) to increase the total number of residency spots to
approximately 212-214 per year in the not-too-distant future.
Could these be empty promises to applicants to our field, a la "protons in 2-3 years"? Sure. But given the current situation of new programs with a move toward fewer treatment fractions, we're heading for a cliff.