http://pad.skyozora.com/news/1068Weapon Series, I'm not gonna bother with the names.
Things they share in common:
Awakenings - 2 skill boosts and 2 TPA
No leader skill
Attacker type
Active skill max cd 5 turns
Red weapon 2916/1719/221
Active: For 1 turn, change its own element to green. For 1 turn, attackers ATKx1.5.
Blue weapon 2601/1750/300
Active: For 1 turn, change its own element to red. For 1 turn, attackers ATKx1.5.
Green weapon 2304/2006/251
Active: For 1 turn, change its own element to blue. For 1 turn, attackers ATKx1.5.
Light weapon 3101/1708/188
Active: For 1 turn, change its own element to
red. For 1 turn, attackers ATKx1.5.
Dark weapon 2502/1852/271
Active: For 1 turn, change its own element to
blue. For 1 turn, attackers ATKx1.5.
Sounds very gimmicky. Note that they're probably silver eggs since their final forms are 5 stars.
They also announced that with the introduction of this series,
Valkyrie (light only) and Tricolour Golems will be removed the gacha completely. While toy dragons (I think only the 3 star version) have their pull rate lowered. ABOUT TIME!