I believe what the OP is talking about is that certain philosophers think of space as being "separate" from matter and energy. So in a completely empty universe, space would still exist. On the other hand, some believe that space is only a relationship between objects, so in a completely empty universe there would be no space (and probably no universe either).
Unfortunately there's no way to know either way, so this isn't a science question but a philosophical one. I'm going to lock the thread. Thinkandmull, if you meant something else, something which science can possibly observe, then please contact me and I'll re-open the thread.