Hello,
The "K2E" family of products will have a single EVM called "EVMK2E". The evaluation module (EVM) is expected to be available in the TI eStore in the July timeframe. Pricing will be ~$1000. The date and pricing is tentative and subject to change. Silicon beta (TMX) samples of 66AK2E05 are available now. All other K2E variants will not be available until Oct 2014. Please note that 66AK2E05 is the "master device" meaning it has all the features active. All other variants like AM5K2Exx are reduced feature set of the master device.
Thanks,
Manish