1) Renaming "Primary" to "Classic"
2) Granting 80 turns to each player's first country of the round to cut down on the dead time at the start when everyone is in protection and there's nothing on the public market.
3) Removing humanitarians limits entirely. GDI already protects the top countries from random missiles and countries that end up behind tend to never catch up. Removing humanitarians at least removes the frustration of lower ranked players being unable to retal.
4) Changing the PS mechanic to use Cooperation style rules. The number of planned strikes starts at 2 per 24 hours and can be increased with SDI tech: "SDI increases the maximum number of planned strikes per day. One additional planned strike is guaranteed for every 15% of SDI and another planned strike is randomly awarded based on the remainder of the tech. For example, 20% SDI grants 1 additional planned strike with a 33% chance of another planned strike. The maximum number of PS per day is refreshed when bonus acres are awarded."

Now is a good time to speak up if any of these changes sound bad to you.