Glad to have ONE Superman back!
Continuity is going to be really screwy now. I am really curious to see how Jurgens explains his history in the next two issues of Action. My guess is he'll be really vague and just mention the big milestones like the Death, Wedding, etc. Pretty much like the splash page in this issue.
Vague enough so that the reader can cram whatever Superman story they like into his history and kinda make it work. Which I think I would be ok with.