It's possibly. What's Marik's Main card? (other than lava golem)? and you can hear only (audio, in the data) when he summon lava golem and summon Ra. i know when bakura event is started;LV 50 deck is a Zorc deck. ( i only hear necrofear, zoma the spirit, ectoplasmer and zorc.) so i think, Zorc is a LV 50 deck for Yami Bakura. OR Komoney think, and Yami Marik's no have LV50.
And if that so, next month will be the end of Duel Monsters era, and Yugi Muto is the last obtainable LD with the event 'The ancient duel between Yugi and Atem'.
Season 4 cards is OP. max Rafael can playable. and i hear when Atem Say "I activate The Seal of Orichalcos"... so they add rafael and orichalcos. and Kaiba Mokuba, Pandora and Yugi Muto the unlockable. + Ishtar Marik. i Think Yugi Muto is the last Unlockable 1st series character in Duel links. why? the yugioh ends when yugi battle bakura and yugi battle with atem.
And i hear 1 best audio. "Ikze Judai-kun" so if Yugi Muto event is ended, next LD duelist is Yuki Judai :D I don't know but, better when not, Yami Yugi is a playable.. When Mutou Yugi is playable and the final LD duelist is Yami Yugi, the event name: (in english: The Final Duel with the Pharaoh. and Yami Yugi LV 50 is all card what he use when duel with Yugi but, it's ok
There's audio files for some of the characters using those cards, but OP has no proof that they will actually be used in the upcoming event. He's just an edgelord, feel free to ignore him