Sorry, I should have been clear, they'll ask for new ones if they believe they're necessary. (The whole concept of 'expired' , well, let's just not go there).
I asked about whether you got the AOR already for a slightly different reason - if they decided that the file was incomplete (like you'd not submitted some critical police clearance) they would have returned it.
So basically now that they've accepted it as complete, if they think something is missing now or needs to be updated, they'll ask and you shouldn't have any reason to worry.