I'd love to see another SEQLD side, my only concern is that there wouldn't be enough support after the initial honeymoon period. That's exactly what happened to the Gold Coast Titans who were everyone's second side until a string of incidents saw them plummet and become a punch-line. They've only just started recovering from that, so I'd like to see them get back on their feet before another SEQLD side is brought in.
I also think the Brisbane Bombers would be a huge mistake. Whoever the other team is, should not represent Brisbane and should choose another part of the South East to represent. At least that way you'd be able to have that core supporter base who identify themselves through that group, instead of just a soulless entity.
While a large part of the blame can be contributed to the utter lack of Sunday games, the fact Brisbane haven't been able to break the 40K average barrier since '93 is really telling.