I think myself and others have proposed similar in the past.
I really wish all the single player skirmish conquest games I’ve done in Age games over the years amounted to more than just skirmishes that only live for that brief match moment in time. You win, or lose… look at the post-game stats…and that’s that. You exit and start a new match. No weight or continuity between matches. No single-player offline ELO gain, no over-arching world map implications, no sense of the game meaning anything more than a glorified chess match. The board gets wiped clean and you just start anew.
I’d like to have the option to have more over-arching meaning and purpose to the single- player matches
A related thread and a little summary I gave before: