Anyone have any idea what OP 0900 is? It seems to echo the data that is being sent to the client.
Pets seem to be coming up as the new spawn op code. fff9 Edit: After looking at this, it seems pets are treated as NPCs. I have not found a structure for them except for when you cast a buff on them.
Tribue item list seem to be op 123e
Title List (all titles like master tinkerer or master jeweler are in this op code) seem to be 642c I dont know where it is yet of when you assign one to yourself.
Petition structure seems to be on op 186e
Edit:
It looks like op 0e4a is when you cast a new spell on a pet. Possibly the display of the buff in the pet window.