We have results with Xerox performing the best but still a wide variety of decks in the top16:
True, but why do the people not play the best deck in the format? Anyway, after the sky has fallen a few times the last couple of weeks with first Narset and then Karn dominating the format is it now Pitch Dredge? I for my part wait and see how the format will adjust.
I really like this approach and the deck looked sweet in stream-action. But it suffers from the same problem all fair blue decks but BUG do in the moment: Your first games against Shops and Dredge are nearly unwinnable and the hate out of the board is not enough and not good enough. I so hope for some regulating moves on Monday to free great innovation like that.
... and like 4-8 decks capable of winning any tournament (Survival, PO, Dredge, Oath, BUG(r), Xerox, Shops, WEldrazi).
I agree with smmenen too, alone the quoted diversity of deck types is something we didn't have for a long time, without dominance of one of them and with a broad strategic diversity.
Maybe we can develop the meta a bit further by unrestrictions to establish additional deck types. Fastbond comes to my mind, which could boost Lands/Depth/Loam style decks, but there might be other possibilities.
Just one deck with Karns (a blue one) in the the top16 of the latest challenge. Lots of Dredge, BUG and Xerox instead.