I think we can go by the concept art in the backgound that has previously been shown as an indicator of what to expect. We will get meeting places on planetary bases where players can interact with each other, procedural settlements that we can walk around get and complete missions by interacting with NPCs ect. I don't think we will get station, fleet carrier or ship interiors. Basically that which is practical for the devs to cost effectively develop. I am actually looking forward to being able to walk around and fly on planets with tenous atmospheres and the footage all looks good to me, but I was a beta backer so it won't cost me any more money to do so.
Hopefully if FD are sucessful and sell a lot of DLC with Oddessy, we may get further content in the future, but when it comes to redundant 3d models and textures like the inside of our ships I would not hold your breath. Like I said if you want to do that sort of thing get Star Citizen. People all want to walk around inside their ships but believe me the novelty will get old very quick and soon show to be a waste of time and effort, and the devs happen to know this already because they are game developers.
I play Star Citizen aswell as Elite, Space Engineers, X4, NMS and Empyrion. plus a multitude of other Space game genres like stellaris etc.
I do agree that walking in your ship is a novelty thats short lived but I didnt actually mention walking in your ship. I agreed with you