Pitmaster Arena

Is it possible to have more instances of this? I would love to go grind in there, but 90% of the time there is only 1 instance going in there and you have to wait 10 mns for a quick fight. Only to have to sit and wait 10 more minutes for the 4 other people to finish their fights before you can fight again… I have seen 2 instances running in the past. Just curious if its possible to have 4 or 5 going all the time so people can get quicker fights…