It would be fun if in some of the classquests you can bring in a friend and that friend have talkoptions. If general Garza says for example in a smuggler friend is present: "What is this smuggler doing on this top-secret mission? Explain yoursefl!" Then the smuggler may have choices like - for the money, doing my duty or Im just here for my looks for example.

 

It should not be in all classquests but perhaps in the classquests that lead to chapter changes.

Totally. I remember bringing a friend when I went to Dromund Kaas to fight the Emperor, and sadly all he could do was be silent.