No room on the DJ side, in fact DJ seem to be using a gate on the Qantas side these days.
DJ only has 6 gates the rest are "Common User Terminals". This means the last three have to be shared and the 3 on the Jetstar finger are also shared. BG should have bought the terminals when they were up for sale but didn't. It is another of his regrets I am lead to beleive..