Iron Man 2020 first appeared in the second issue of the Machine Man limited series in 1984, created by Tom DeFalco and Herb Trimpe. Arno Stark, he was originally the first cousin once removed of Tony Stark. and he was the bad guy.
He was reintroduced by Kieron Gillen as Tony Stark's adoptive brother, and his role in the comic has been expanded in recent issues of Tony Stark: Iron Man, taking over an entire issue.
And of course, it is almost 2019. 2020 is getting closer.
And the new Marvel Previews, in some comic stores today, we get a tease of just that.
2020 Approaches… with that coggy logo…