I was hoping to start a post that has any information on how we can obtain the new cards.
Kirin:
Special Gem Recruit (250 Gems). Limit of 4. Only through January 31st, 2015
Human Chess Pieces:
6* Pieces are available through Normal Gem Recruit (allegedly) and 6*+ Gem Recruit (200 Gems).
4* Pawns are available through Normal Gem Recruit (allegedly), Pal Point Recruits, and as a bonus reward in the Advanced Maps.
New Greek Monsters (Manticore, Hydra, etc.):
7* Cards are available through Normal Gem Recruit (allegedly) and 6*+ Gem Recruit (200 Gems).
5* Nature:
The product of evolving the Book 2 4* Fairies.
8* Dual-Element Dragons:
The product of evolving the same 8* dragon.
If anyone has any additional information please post below and I will update.
*Updated
Added 5* Nature Fairies
Added 8* Dual-Element Dragons