The absolute most important change required of KSP2 is to have the planet sizes realistic; i.e. about 6 times the size of the kerbal system planets in KSP. As much as I loved KSP, the “Honey, I Shrunk the Kids” approach to planet size was always a major turn off. In fact, I was only able to play the game with resizing mods that corrected this atrocious decision. For a game that’s based around realism, to make what is supposed to be a Sol analogue an analogue for Mini-Me instead is self-defeating.
Please….. don’t make the same oversight with KSP2
Otherwise, looks great!