Blake Snell's first year in MLB was 2016. With 1,096 career IP he is one of only 41 pitchers to throw at least 1,000 innings since then.
Now of course you got 2020 in there gumming up the works somewhat when it comes to comparing against past workloads, but let's just give it to these modern day pitchers as kind of an extra credit as it were.
So if we look at the eight full seasons prior to 2016 (2008-15), there were 71 pitchers to throw at least 1,000 IP. Move it back to the eight full seasons prior to that (2000-07) and there were 83 hurlers who clocked at least 1,000 IP.
At this rate I'd probably put the over under on "pitchers to throw at least 1,000 IP from 2025-32" somewhere around two dozen.