It appears the names and texts of the new fusions have surfaced.
LEDD-ENA00 Dark Magician the Dragon Knight
Level 8 DARK Dragon Fusion Effect Monster
Materials: “Dark Magician” + 1 Dragon monster
This card’s name becomes “Dark Magician” while on the field or in the GY. Your opponent cannot target Spells/Traps you control with card effects, also they cannot be destroyed by your opponent’s card effects.
LEDD-ENB00 Chimeratech Megafleet Dragon
Level 10 DARK Machine-Type Fusion Effect Monster
Materials: 1 “Cyber Dragon” monster + 1+ monsters in the Extra Monster Zone
Cannot be used as Fusion Material. Must first be Special Summoned (from your Extra Deck) by sending the above cards from either field to the GY. (You do not use “Polymerization”.) The original ATK of this card becomes 1200 x the number of Fusion Materials used for its Special Summon.