It does sound like more a G4-focussed event... and those don't sound like too many tables (but this also sounds like a new con, so those are usually pretty small... so 12 tables may be enough for them. I don't know...). Not having any information on ticket prices anywhere - either pre-reg or at door - isn't too good a sign. (and mentioning that they might not be able to sell at-door badges, depending on attendance? I guess that means if too many people show up, they'd have to turn them away because of fire code hazards).
I'll keep an eye on this too, just to see if any more information comes up. If it is a purely G4-focussed event (no other gen collectors), I'll probably pass, too.