It's highly unlikely that they'd do a content patch, as the said they're happy with the way KotOR II turned-out after the content cutting.
Again, wouldn't hold my breath...
After all, if KotOR II changed the story of Revan a bit to make it fit to their storyline, what's stopping the Devs of KotOR III from "tweaking" what happened in KotOR II.
Besides, who's to say that KotOR III will continue KotOR II's Story Arc. Let's face it We can't play Revan as by the end of KotOR I s/he was at level 16-20, and that was 4-5 years before KotOR II.
The Exile at the end of KotOR II was at level 24-29. Or if you abused the infinite Spawning (In Korriban for example) s/he might be as high as 50th LvL.
The problem with high levels and the plotline mess caused by two different dev. teams....
... just can't see easy times for KotOR III.