I actually didn't expect Khan to just abandon his people...but he does seem a bit self serving, so I guess it's not exactly out of character.
Also, we get some idea of when everything happens.
- 2267 - Space Seed. 6 months later Ceti Alpha VI blows up.
- 2272 - They complete the Venture, and it presumably takes off with Kali and Delmonda and maybe 2 others.
- 2285 - Wrath of Khan happens. Khan mentioned it was 15 years after being marooned on Ceti Alpha V, but this is clearly 18 year difference. Khan could just be bad at keeping time. (this is assuming that memory alpha is correct)
- 2293 - The Excellsior goes to Ceti Alpha V to investigate why Ceti Alpha VI blew up and what happened to Khan and company. Sulu also mentions Kirk's death, so we know this takes place after the Enterprise-B's maiden voyage from the opening of Generations.
Also, interesting reasoning for Ceti Alpha VI's destruction being from the Elboreans' nonstandard warp drive. I'm really happy they explained it. I don't understand it though. What kind of FTL drive blows up planets? That sounds more like a horrible weapon putting the Deathstar to shame.
Sounds like rehabilitating Ivan didn't go very well.
Well, one episode left. I have to say, this has been a pretty enjoyable listen to on my mondays.