I'm down with it, but I've also seen it done wrong (hint - starts with the letter X.) So there would need to be some meaningful things to do when walking around.
I LOVE the lounge/observation deck idea. Anything that brings players together is good. Maybe EVERYONE on a station, regardless of in-space instancing, would be able to chat / transfer cargo or funds in the lounge.
I also like the idea of walking / space-walking around your ship manually messing with systems to get them running again / tweaking stuff to squeeze a little extra performance from them.
The only thing is, both of these things could be done through a GUI, without having an actual avatar of yourself walking around. So again - great sounding features, but if we're gonna have to walk around to use them, it needs to be executed really well.