I'm good, thanks for asking, I hope you're ok too.
Concerning your questions :
1) There is a 2.0 in the pipeline, but it's on hold for the moment as I'm working on another big project, not related to GD.
2) Asteroids and moons can be done easily, there are some samples provided with the software, but you always edit one thing at a time. You can export stuff in separate layers and composite everything after ... (like I've done on these compositions : https://www.artstation.com/ignishot/albums/81535
) It's not planed for the moment to support more than one planet simultaneously. You can also do the compositing in a 3D software or a game engine (unity/unreal for instance).
3) This can be done also in compositing ... The point of GD is to create the basics layers, but not to be a full features compositing software, which is way beyond what it can do.
4) This is in my todo list.
5) You can already randomize everything (dice icon to open the randomizer, check seeds/bascis/advanced/colors/all sections and click randomize ... you can do the same on the background too)
About the cities, you can also check the night lights intensity in the shader tab, also the Nightlight direct and indirect intensities in the cities tab.