A question, are you guys planing to simulate the pyroclastic clouds/shock waves that follows impacts/eruptions?
We pretty much want to simulate almost anything! Tech for shockwaves is already in, although it still needs tweaking.
That said, we're constantly making decisions about how to prioritize features based on how important they are for the application as a whole. Things that create lots of scientific and / or visual value tend to go first, features with less impact come after that. Development time is a factor too.
Usually creating one feature rapidly leads to follow-up tasks that come naturally as an extension of the latest development, and then there's you guys coming up with suggestions... the universe seems to be an "all you can eat" festival of things to simulate