I think a lot of it will depend on who you end up living with. I went to visit my boyfriend at his uni every other week and he would visit me the other weeks and I found I really didn't miss out on anything apart from the occasional usual night out and it was the same at my boyfriend's. A lot of the people in my block went home at the weekends to work/visit family or boyfriends/girlfriends etc.
I'd just wait until you get there and see how it goes. I remember speaking to one girl in my tutor group who said she found she was going home more often than she had originally planned to because her friends/flat etc just weren't about at weekends but I knew others who did a lot at the weekend.