Is it still possible to win the Rookie Award Grandslam for GG next year?

Honestly I don't think it will happen in next years

because we already can see that currently kpop award shows are moving more and more towards what's happening with MBC, SBS, KBS Entertainment Awards.

Each of tv channels only awards their own productions, and actors which star in those productions.

I think we will soon start to see similarities, I'm sure at one point there will be a rift and one of MAMA/MMA will say goodbye to what we know.

Also one of GDA, TMA, AAA might rise more if budget will be there, and they might set/already have different type of rules as well as different set of awards.

GDA might be already biggest winner of all award shows if BTS members will manage to go out of quarantine on the time to attend this award show, because they were 'unseen' in Korea for such long time, even red carpet, and just award acceptance speech will be huge for GDA as an event.