I mentioned this back a couple or so years ago when there was so much talk about trading Manu. My opinion was then and still is that not only would Manu be re-signed but that he had all elements of what it would take to be a Spurs coach and successor to Pop.
Watching today's practice interview (Sunday June 2) brought back that recollection and confirmed my feelings as to his possible future. Manu still wants to play, which means he will be re-signed. Manu also states that he wishes to remain connected to basketball after his retirement either in Argentina or the States.
If Pop can remain the Spurs coach for a few more years and Manu can get in a year or so as an assistant to Pop, I still see him as the ideal replacement.