Hi Stardock,
since this is early access for some time to come, I have hope to get something else in GC3 changed, maybe even in other future SD games *cough-SK-cough*.
I suggest to take a different approach at the UI design. Not talking about the graphical design, the ergonomical part.
What I would totally love would be an (modular) UI, that can be freely customized in shape, size (scale) and position, most prominent example for this I can think of right now is World of Warcraft (a small MMO game, you may google it). Not only can you move all the modular elements on the screen to where you like them, you can as well customize the complete look of the UI to your liking and share it with the other players. Uh - actually like a "mod". Also, think of the people out there who use multiple displays, they would profit from this as well.
If thats too much to ask, please consider at least to give us the ability to move the ingame windows and let us scale the UI to adjust for large screens, most importantly let us scale the fonts to be able to read easier.
Many thanks 
If you wonder why I ask for this: Since computer displays became so large, so that what you have "on screen" is not the same thing as "in your view", I found myself looking over to the edges on the screen to spot important little numbers, text and buttons. It gets tedious, it lets you oversee important little things. In most games, the UI does not scale in size, just in dimension relative to the screen resolution. There are games where it gets really painful when devs put the "wall of text" in small windows to ONE side of the screen and all game controls on the OTHER edge of the screen, sometimes needing interaction between both, letting your head tilt left to right continuously. The whole "put all on the edges so the player sees the main action in the middle" thing was fine at the Master of Magic and Master of Orion ages, where we had small 4:3 ratio 15" displays and fired up our DOS 6.22 with artfully designed and carefully hand-crafted boot menus to get the bloody 640K RAM free by loading stuff into XMS and/or EMS.