Borged changlings still have access to changling commands.

[Noah Buttes]

Having said that, I wonder if the same thing happens to borged wizards/vampires, though I'm fairly sure it doesn't. It would make for a good test, since I'm sure those would not be meant to persist after death.

I was made into an AI as a vampire once, and I can say that you can still blind people and hypnotize people, but those are the only working powers.