It looks like we will finally find out why Jon hasn't been seen or mentioned in Action Comics, Event Leviathan, and in Doomsday Clock. It looks like he is going to be a member of the Legion of Superheroes. Based on the August and September Solicitations of Superman. I am also wondering if DC through the Year of the Villain are going to wipe Jon from everyone's memory and have Clark and Lois forget they ever had a son. With Connor back into the main continuity...Jon has become expendable. Plus Bendis and Johns have never referenced Jon in either Action Comics or Doomsday Clock and neither has anyone else. Could this be Luthor's ultimate revenge on Clark and Lois...making them and the world forget they had a son...even though he is in the future. The Newsarama article is pasted below.
https://www.newsarama.com/45608-legi...FM5G9aiCYPSaEw