Ridership stats for April and May were released: www.grt.ca/en/about-grt/performance-measures.aspx
2023 up to May was 9.83 and 2024 is 12.58M, a 2.75M increase. If this pace keeps it would put 2024 at ~32 million.
ION seems to hover a bit above 0.4 million a month, I wonder is that is a capacity...