Propaganda Bureau and Uranium Enrichment Program were added over a year ago (21/Jan/2016).
There is currently only 6 projects that are basically required for all nations (7 if you include Mass Irrigation). The rest are dependent on both your economic and military strategy, in that a nation that doesn't make Gasoline, doesn't need the Emergency Gasoline Reserve.
This means that pretty much once a nation hits 40,000 or higher infrastructure, they start running out of projects that they c