DC One Million has Superman-Prime (Kal-El) surviving up until the 853rd century and is implied to be immortal.
An Action Comics team-up with Wonder Woman where they spend a thousand years in Valhalla fighting magical demons jibes with the World of Krypton and DC One Million references above.
I have read those as well. Somehow it apparently contradicts the Byrned Superman not being able to survive in the Sun. Also, as I mused in another thread, DC seems to be gradually moving back to the (much more) powerful Silver Age Man of Tomorrow - guess everything cycles eh?
And I have read the DC team up with Wonder Woman which, in part led to my question in the shipper thread.
Thank you for your thoughts.