Restarting the GPs would bring back competition.
If you want to start a guild nowadays and you want it to be famous, you practically have no chance.
I mean look at the first 3 guilds for example, they have so many GPs that smaller guilds won't even bother trying to get close to them.
Resetting all the GPs would also give newer guilds a chance to stand out, would bring older and newer players to the game for the competition, to be #1.
It would be great if once every few months this would happen, the GPs would be reset, and everyone would compete once again to be #1.
This could also happen to the base rankings, the pvp rankings, the sector rankings and so on.
A reward could also be given, but being #1 in the rankings is enough for most of us.