ARM Cortex A57. 64 bit should give a little boost to Litecoin calculation, and the new extended NEON Engine should have instructions for SHA2 hashing like the VIA Padlock Engine.
AMD said they will bringt 8 core and 16 core CPUs in the second half of 2014.
Yep those A57 and A53 chips are the first of the ARMv8 chips to come out. They're looking really nice, and I can't wait to see them in action, for LTC or otherwise.