Accommodation at DMU

Hey, I was just wondering under which circumstances does availability for accommodation change? Is it only when people cancel their bookings, or do certain rooms only become available later in the day?

I finally managed to get onto the booking page and I was considering going to either Liberty Court or The Glassworks, but both have ended up fully booked. At this point in time only Liberty Park is available out of all of the accommodations, including places other than that of Liberty Court or The Glassworks.

What's the likelihood that more rooms will become available later on? Should I just wait, or should I start looking for private accommodation?