I will make this bold prediction....actually it's not that bold. Old Spock will mind meld with Young Spock giving him knowledge of the future. I promise you.
In fact, I think he might just receive his own katra before he dies some sort of heroic death, but I won't make any guarantees on that.
This will serve a couple of different purposes. It serves to guide and inform the new timeline, but keeps the tie between the two. It'll sort of foreshadow certain events without actually spoiling them or ever giving a clear resolution. Also it'll kill off old Spock and the old timeline without killing them off at all really.
In fact, I think he might just receive his own katra before he dies some sort of heroic death, but I won't make any guarantees on that.
This will serve a couple of different purposes. It serves to guide and inform the new timeline, but keeps the tie between the two. It'll sort of foreshadow certain events without actually spoiling them or ever giving a clear resolution. Also it'll kill off old Spock and the old timeline without killing them off at all really.