The end date is 1964 now? That means the world would be in the middle of the space race. Since you plan on releasing this at the end of March, I'm probably a few weeks too late, but is it possible for you to make appropriate events for the great powers (USA, USSR, Germany & Britain) that
can fire (significant random element should be there for project duration and outcome) if the required technology has been researched (probably computers and rockets) and the nation is not at war with any of the other two power blocs? It could be a series of multiple choice events (mostly concerning the amount of resources funneled into the program and the speed at which the project should go forward; both would affect safety), and while the program was active, the affected nation would lose a fair amount of off-map IC/resources. Disasters would increase dissent, successful missions would do the opposite and also give some off-map victory points.
The whole space race can probably be simulated quite adequately within the Europa Universalis event system (considering that this is a wargame) and would not need any modification of hard-coded stuff. It would give late game players a little bit more to do other than attacking their ideological enemies through proxy wars.