Trinity War from DC. The big cross over with all the "Justice Leagues" including the Justice League Dark with Zatanna.
But I have not bought any of the comics yet. Frankly I might just wait for the collected trade if it ever comes out. I also have not seen any new cospaly pics yet from SDCC. No new Young Justice anymore.
So in the spirit of crossovers. Here are some more Zatanna team-ups and cross-overs of various sorts.
week 134 Carmine Infantino tribute by ~StevenHoward on deviantART
Zatanna sketch by ~JLRincon on deviantART
Commission - Deadman, Constantine, Zatanna by *tyrannus on deviantART
Zatanna + Scarlet Witch by ~HaphazardMachine on deviantART
Counterparts: Zatanna Zatara and The Scarlet Witch by ~nhiaphengthao on deviantART
Annataz Arataz, The Mistress of Mayhem by ~krystenperes on deviantART
Who knows about this one.
Zatanna Deadpool And Pikachu By Dannith by ~Kenkira on deviantART
And Zee with herself.
Zatanna Fetish by ~Youngjusticeaddict on deviantART