The limited edition resin diorama is now up for pre-order -
http://www.manticgames.com/mantic-shop/the-walking-dead/product/eeny-meeny-miny-moe.html Negan comes with a removable base so that he can be used in the game however doesn't come with a character card. The set does come with new cards for Rick and Carl though. Shame that Heath is missing from the scene but they have left space for him so he may be released in the future (they say they didn't want his first model to be on his knees and not usable in the game).
There is also an equipment card deck (mix of old, future and exclusive cards) and two plastic token / measuring stick sets.
This years convention exclusives will be Clem, Lee and a Walker from the game (the one eating a deer) -
The set will launch at Adepticon in March, while the
UK launch will follow in April at Salute, it will then be available at a variety of cons globally. For those unable to make it to shows it will also be available in the Mantic online store during Mantic open day weekends (next one is in May).