It’s here!

Update 1: Stellarknight Triveil
Update 2: Rescue Rat’s effect.
Update 3: Clearer art of Rescue Rat.
Update 4: El Shaddoll Fusion
Update 5: Fixed up a massive error on Ultimate Herald.
Update 6: A new picture of The Dark Duelist and a picture of Elemental HERO Core. And some information about Hokuto and Masumi.
Update 7: Next Challengers’ Cover Card is confirmed.

Source: Maxut