Predictions for Duelist Advance
I think we’re looking at God Cards.
Reason being that the Early Years Collection releases in February, and IIRC when it was first announced they placed a heavy emphasis on DM4 and DM6.
The promos for DM4 were as follows.
Yugi Version:
1. Osiris(Pre-Order)
2. Windstorm of Etaqua
3. Anti-Spell Fragrance
4. Mesmeric Control
5. Gamma the Magnet Warrior
6. Ring of Destruction
Kaiba Version: 1. Obelisk(Pre-Order) 2. Aqua Chorus 3. Riryoku 4. Seal of the Ancients 5. Valkyrion the Magna Warrior 6. Vorse Raider
Jonouchi Version: 1. Ra(Pre-Order) 2. Sebek’s Blessing 3. Sword of Dragon’s Soul 4. Negate Attack 5. Magical Arm Shield 6. Alligator’s Sword Dragon
Guide Book: 1. Berfomet 2. Chimera the Flying Mythical Beast
The Promos for DM6 meanwhile?
Game: 1. Toon Dark Magician Girl 2. Exarion Universe 3. Gilford the Lightning
Guides: 1. Temple of the Kings 2. Mystical Beast of Serket
The Early Days Collection’s release date happens to roughly line up with around the time they should be showing off the TCG WPs based on the Temple of the Kings deck.
So following that logic and the heavy focus on DM4, I’d reckon we see Gods as the headliner theme with maybe some DLC support for Chimera and Magnets in Duelist Advance.
Also worth noting that DM6 was later remade into Worldwide Edition: Stairway to the Destined Duel.
In which the JP version ALSO came bundled with the God Card promos ala DM4.