Glad you finally found a name to put to all of your miscellaneous projects. Awesome logo too.
Focusing on strategic additions to the game that are built around and retain the original assets of the Sins game.
I'll actually be doing a minimod soon that has much the same goal, though with entirely different elements. You're free to incorporate it if you wish, but it will include random encounters, racial powers, rebalanced and enhanced civic elements and a couple other miscellaneous features that have been on my too do list.
As I am pulling it all together, there will be--using the same texture and meshes already in-game--approximately 700 planet variants. Just mapping out arrangements was a pain.
This might sound excessive (or even obsessive) but these are not all "random spawn" but are planets for intentional placement on a custom map such as might be built into a campaign or tourney.
It will allow you to choose specific resource, logistics counts for every world type. So if you want a Terran planet with 3 civilian slots and exactly 1 metal and 2 crystal resource asteroids then that's in there. There also will be special planets with larger or counts of resources.
I also will have an additional Random Spawn mod that will make most non-standard worlds spawnable on random maps for those who like that sort of play.
I have all along built specific and random militia units into my maps (that's what led me to modding) but as Goafan has done with his 4x Extended mo, I want to have random encounters built in as an option. for those who prefer that. Unfortunately, that adds an potential additional 700 planet variants so I will have to experiment on some options for that.
The Random Spawn mod will include the encounter templates by default. The Strategic Placement version will require additional worlds. I guess I'll have to see how the game handles 1400 world types.
I am also adding:
Colonizable Gas Giants--pretty much as seen in Celestial Bodies and other mods
Variable Bodies--like those in Distant Stars with on-off switching abilities
Deathworlds--negative credit worlds with huge resource bonuses
Aquatic Worlds--requiring research to get real profit from
These will be standard in the Random mod and a stack-on mod for the Strategic Placement version.
More later--gotta go work in filthy, stinking carp real-life.