We can’t have hybrid dares because the first and last stages must be of Chicken Invasion type, and dares can only have up to two stages. The wave limits would need to be increased so that this mission type can have the right to exist there.
As for Retro Invasions, they would be more farmable as dares than they already are as regular planetary missions (or should I say wormhole missions). Even if they weren’t, they would still not be suitable for dares. Retro Invasions are intended to be secret missions.
However, I personally wouldn’t mind seeing Droid Raids in dares as long as they are rarer than the other types of missions.
That is all I have to say about this submission. Thank you for attending my TED talk.