I'm not opposed to a FPS aspect to Elite. Heck, when EVE announced they were going to add WIS - I very vocally argued that it could be a good thing IF that walking around allowed for ship boarding and station raiding. I feel the same way for Elite, walking around in Stations, on Ships, or on Planets could add a lot of depth to the game - but only if it's done well. If it is merely a tacked on feature that isn't deep at all, then it's a waste of development time that could have been used for other systems.
FD and DB in particular have stressed that they want to get this absolutely right, so I'm not expecting this anytime soon. It may even come in stages; walking around ships, then station, then...