Not all of them got changes. Unmodified leadership gets mentioned again.

Monsters & Handlers use the handlers leadership still, but are clearly prohibited from using the handler stats for any other characteristic tests.

Here's one for Chris:

Q: Do Stomps or Thunderstomps benefit from any other special rules,
equipment or magic items? Or vice versa? (p76)
A: No to both questions.

So do Dark Pegs still get a strength 5 stomp in the first turn?