Well I actually don't remember much about what has changed from RTW.
One of the things is that map-related stuff often doesn't work in show-me scripts (because the map isn't loaded at game start anymore but at campaign start).
The state of the campaign script is saved now though so that's no huge problem because we can use that for almost everything.
Another important change in 1.2 is the set_event_counter command which allows you to interact between different scripts, the edb and all files requiring triggers, and the ability to dynamically change leader AI personalities by script.

Anyways, I'll see what I can get together. A link to the docudemons will be added to the tutorial prerequisites.