Wait, what?
Why wouldn't there be a prompt in the new game menu?
It'll be the *very first thing*! Probably written in enormous font. "Import a world state from the Keep" or "Use default world state" are literally the only two options they'll have.
You misunderstand... the option to use your DA Keep Save will be there, of course. But if you had no idea about the Keep before firing the game up, will the game prompt you to visit the site, through your PC or console browser, and set things up? THAT'S what I'm talking about.