All of my PCs did at Aldern's behest. Here were the details that I planned or did:
- Aldern sat next to the target of his interest and kept whispering during the play to try and learn more about him.
- Cydrak caught the PCs after the play, wanting to thank them personally for their involvement in protecting the town. He introduces them to Allishandra, who in my game was the 'human form' of Xanesha (she took to acting after foisting the hard work onto the Brotherhood of the Seven). She teased Aldern a little for spending 'so much money he doesn't have' on the PCs, both to hint at a connection between them and to let the party know that Aldern is broke.
- After leaving, Aldern brought the party back to the Rusty Dragon, where the confrontation with Lonjiku was already happening as they arrived. As the only person around who knew Minkain, Aldern translated the fight as best he could until Lonjiku turned on the PCs
If you google the name of the play, someone has also proposed a plot for the play if you want to get that detailed.