Whatever their other faults of the new Star Trek movies might be the cramming destiny into the plot isn't one of them, it isn't about prophecy or what will be and is more along the lines of what "should have been". Before Nero broke the timeline Kirk went through his life and career and the crew of the Enterprise all came together organically, Kirk only became Captain after Captain Pike was crippled.
But Neros actions shattered the timeline and changed the course of events, from old Spocks perspective he saw how the past was and now sees young Spocks future developing differently but with some correlation to past events. He isn't a supernatural wizard or prophet, he just sees how things should have been.
Anyway it could make a great plot for a future film if they can sort the writing out, have old Spock give Kirk and young Spock a bunch of advice about something trying to help them but because of the differences in the time line it was the absolute worst thing they could have done.
But Neros actions shattered the timeline and changed the course of events, from old Spocks perspective he saw how the past was and now sees young Spocks future developing differently but with some correlation to past events. He isn't a supernatural wizard or prophet, he just sees how things should have been.
Anyway it could make a great plot for a future film if they can sort the writing out, have old Spock give Kirk and young Spock a bunch of advice about something trying to help them but because of the differences in the time line it was the absolute worst thing they could have done.