Woo! Interstellar, Interstellar, Interstellar! Not only the name of my favourite film, also something I am really excited about for KSP2! I have always thought KSP needed more celestial bodies in the stock game, but we would have lost the lore behind the many many years of KSP.
Interstellar is a great way to keep the original stellar system as it was while also adding new features.
Sure, I can't wait for Multiplayer or colonies or orbital construction (don't get me started on orbital construction OMG) or all the other good stuff, but interstellar travel...