An Abzan and Jeskai final at PTBFZ is extremely reminiscent of PTKTK. The top 8 was mostly rounded out by decks that we've already seen, though some sweet ones performed well in the constructed portion without cracking the Top 8. The official wizards coverage did a great job of highlighting most of these awesome decks, with deck techs late in the tournament for Christian Calcano's U/B Aristrocrats deck and Sam Black's Bant Tokens. One successful deck that you might not have seen is Hao-Shan Huang's 8-2 Rakdos Dragons build:
It's not often that Rakdos decks end up being top-heavy control strategies, but Hao-Shan's list definitely has a lot of angles to attack the expected decks. Foul-Tongue Invocation and Blighted Fen offer answers to Dragonlords Ojutai and Silumgar, with Complete Disregard being a great way to answer both Hangarback Walker and Mantis Rider. Draconic Roar is also a great way to answer small creatures, especially now that Lightning Strike is no longer an option.
Pia and Kiran Nalaar is a card that didn't even necessarily make the cut in the artifact deck last season, but that people were excited about initially. It definitely fits the bill as a control finisher, and combines very well with Hangarback Walker.
Two elements that I'm surprised not to see in the deck are Wild Slash/Fiery Temper as efficient answers to Jace and Atarka Red, and Kolaghan's Command, which is just the best red/black card that this deck isn't playing. The Jeskai decks are starting to take advantage of K-Command, and it looks to fit here. Re-buying Pia and Kiran is definitely a strong play.