You said 6-12 months without knowing any of his injuries. I was in two car wrecks and neither took 6 months to recover from.I mean the average person ain't in the type of shape or fitness level that world class boxers are in. Spence might recover faster than average cats in the same type of accident, but that don't mean he'll be ready for world class boxing. He gotta build his body back stronger than the average person.
I knew a guy that got blindsided off a scooter and hit the back of a delivery truck. Dude was a power lifter that competed. Dr. said if dude wasn't doing that shyt, his body prolly wouldn't have been strong enough to deal with all of the trauma he endured from the accident. Cat ending up getting some brain damage too. He recovered for the most part, I don't think he 100% tho.
at the end of the day, no two people recover the same and Spence should know himself better than we do.