We discussed it on discord. And it isn't a bad idea. It is sort of fluf though, not really adding anything new to the game.
As you said, it basically just need to function like the current Wharf does, except it would not be required to be on a coastline. It should probably require electionics in its construction, so it doesn't completely takeover the Wharf's job.
Call it a "Helicopter Pad" maybe? But I guess that would make the assumption that an atmosphere is required.
Could also rename the current Airport Terminal to "Spaceport" and then implement this new building type as an "Airport". It would be hell to get used to the new name, but I have never really liked that our Airport Terminal dual as a spaceport.
As you said, it basically just need to function like the current Wharf does, except it would not be required to be on a coastline. It should probably require electionics in its construction, so it doesn't completely takeover the Wharf's job.
Call it a "Helicopter Pad" maybe? But I guess that would make the assumption that an atmosphere is required.
Could also rename the current Airport Terminal to "Spaceport" and then implement this new building type as an "Airport". It would be hell to get used to the new name, but I have never really liked that our Airport Terminal dual as a spaceport.