I’d imagine he will be back and fit in due course.
Some studies are showing links between playing contact sport/RL and increased risk of MND. It’s right that the sport takes brain injuries more seriously.
I suspect that we’ll see less of players on the field generally going forward. If they are better managed during their careers then maybe we’ll have a reduced number of lifelong injury conditions when they stop playing.
Flogging them until they fall apart isn’t really welfare-friendly and I suspect the sport is going to have to grasp this nettle.