I mentioned this several galaxies ago. I think having formal alliance groups and leaderboards by alliance would make it much easier to determine who is "winning". It would also give people an incentive to participate actively and cooperatively in alliances, rather than just using it as a mechanism to keep from getting pirated.
Right now, the leader boards reflect mostly cumulative society level. That means that to win, you have to play the game as a giant land grab. But if you look at the empires of most of the leaders, you see that most of the planets are poorly developed. Quantity over quality wins. There are other dimensions to measure success. Planetary improvements should be factored in for example.
If it was easier to "win" by being a member of a group rather than having to go it alone on the leader boards, people would feel much less stress when it comes to managing their respective empires. Even small players could participate in a meaningful way, rather than having to just avoid the wrath of larger neighbors. Just another dynamic to think about. It's something that requires almost no code (at least no UI code, maybe a couple of reports), and adds a different dynamic for sure.
Anyway, I'd be all for standing up a couple of "experimental" instances where gameplay ideas can be tweaked and shared. I'd love to see the game opened up, even if it was with a license that only allowed official changes to be ported back into Dave's master branch.