Tiger was a walking ambulance before this. It's not like we'd be expecting his body to hold up well. Do I physically think he could complete a golf swing after 6-12 months of rehab? Probably. Do I expect him to be able to ever physically hold up? It depends what hold up means. He could probably complete some tournaments, but obviously not with anywhere near 100% health. 100% health is long gone. What this does is probably take him from 75% health and chop 10-15% off of that.
I was thinking about this yesterday, but I think he's going to continue to play because he's going to want to continue to get his son into the game and eventually maybe play in pro tournaments and majors with his son. I think he realizes that he's not going to be playing the Masters until 70 years old, but could he play a limited schedule for another 10 years? I think he might. Charlie could be into all the big tournaments in the next ten years, if not earlier. If he's anywhere resembling someone whose going to have a long pro career, it likely doesn't take more than 15 years to play in all these tournaments.
I think thats probably the timeline. Tiger sticks around for 10-15 years to help his son along in the sport and eventually try to play with him in some tournaments and majors. For the time being after he recovers from this, he'll attempt to win another 3-4 majors to catch/pass Jack with more injuries than before, but its not like he's been injury free for the last 20 years.