1. Top 64 on the current leaderboard.
2. I don't think you should exclude anyone from playing based on their location. But just like in the GST if it's excessive you get DQed.
3. All relatively easy things to accomplish. Making an extra spar arena level could take like.... 30 seconds. Trophy is the same, just copy the GST trophies, make it 1, put it in the main lobby and why shouldn't the gfx team be capable of whipping up 3 extra hats for an event? Doesn't seem like a big issue to me.
4. Idek if that's even a real problem. I've gotten summoned into the GST room every single time just fine and it seems like that hasn't been a big issue over time, why should it be now? I think I remember one incident where someone wasn't summoned with their team and the host fixed it right away.
5. It would be just as laggy as GST. I don't see how there would be any difference. Every GST I've been in has never been "out of this world holy **** what is happening" laggy.