Imo they need to step up their tactical game and teams have had plenty of time to read their playstyle since it was the #1 team to look at.
Also look at the head-to-heads games vs. let's say NiP for example, you'd expect the opposite team to catch up after so many defeats.
Their firepower is one of the best if not the best and it's what has been given them many wins alongside their known flexible style.
When they improve their style making it more coordinated they'll be great again, if not, I wouldn't mind seeing changes tbf there's many good players out there and G2 can get any of them.
Another thing, G2 has spoiled us with their dominant era, that's why you shouldn't have high expectations. You can also see they've tried new and weird compositions in their pick phase but it didn't work out. I don't know
Mixwell stopped streaming for the 1st time ever. He reached #1 in EU in the meanwhile so I'm guessing they're preparing new stuff