Is that it?

[Saneko-ragnaros (Saneko)]

They posted notes about this not even 2 days ago:

Season of Discovery Gameplay Notes - 2 December

As explained here, the maximum rank that can be achieved in Phase 1 of Season of Discovery is rank 3. Additionally: The Tidal Charm trinket does not drop from Prince Nazjak in Arathi Highlands in Phase 1 of Season of Discovery. The Arena Master and Arena Grand Master trinkets are not available in Phase 1. Runes that will become available in future phases cannot be obtained in the current phase. World chests located in high level zones will not ever spawn during early phases. The Stranglethorn …