Ten years in the future isn't that far. It's not Batman Beyond far. Bruce would be what, 40's, maybe 50's?

And with Bruce apparently running things from the Batcave, my hope is that they let him marry Selina and have Helena and that's why he "retires" (or moves behind the scenes). The Bat/Cat book with that promised "change for a generation" is still coming and DC dictated to Tynion the filler guy to keep him and Selina as a couple in his run, so...maybe that could happen?