you greatly exaggerate how difficult it is to qualify for the GST
it's the top 64 teams on the leaderboard for the iDevice side and the top 32 for the Mixed side
that means that even the guild ranked 96th has a chance at entering

which means this team could would potentially be in the iDevice GST if it was tomorrow:


if they did end up doing a singles tournament, it should be the exact same format
the top 64 iDevices and the top 32 iDevices/PCs who opt to enter the mixed side
it makes the most sense, encourages people to spar more actively, etc.

the new singles leaderboard system adds some consistency to rankings and makes it much more difficult to manipulate and cheat your score so that qualification system compliments it pretty well