There should be like a space race tech part which give certain bonuses depanding on the tech. For example, satellites could give radars +25% visibility or something

There should be space like tech like a 5+ pop if you build an outpost on the Moon as well as interplanetary fighters and things like Nuclear Space Stations and Millitary Space Bases as well as maybe a Mars Colonization mission that gives you + Resources and a Moon mineing program as well as the tech to make artifical islands.

Space tech in general is something I'm interested in to do. Though making them effective in combat might be hard if we start talking about interpanetary fighters and nuclear space stations

Biotech seems like an interesting tree to include.

Add Thorium before Fusion in the tree, increasing research time a little and increasing industrial efficiency as well. It's a very interesting technology and would not require much effort to simply add another node in the tree. If you need some flavor text grab it off Wikipedia's article on LFTR or Molten Salt Reactors. If you're interested in it, check out Kirk Sorensen.

Also you need icons for the Graviton Trace Isolation branch and the Advanced Surveillance Drones branch.

The icons are in production, I just didn't want everyone to wait until they all got done. I'll think about the rest of them.

Human augmentation in a Deus Ex fashion sounds like it'd fit well.

If you're adding in any new decisions, that could be coupled with decisions regarding Bioethics and Transhumanism (like outlawing or encouraging augmentation among the populous). Changing unity and stability, stuff like that.

Make the space industry tech unlock a decision that lets you gradually convert your industry into offmap factories.