The second version, available only directly from HC will include an extra part of the console, so Spock has one of those higher up screens to consult as well. There will be just 150 of these:
In May Titan Collectables will be releasing the fourth in their Star Trek Masterpiece Collection (Kirk and Picard are out next month, with Data following in February). This time they've moved to the TOS movie era with a Khan bust:
Sources: Toy News International and Hollywood Collectables.