Cady is super hyped to meet Joan because she's always super hyped to meet everybody! But particularly the Winchester's mom! She can also have plot with Panda, because why not take issue with the super famous vamps who may or may not kill their lunch regularly. Who knows?!
For Meredith (I'm so excited you apped her!) I'm pretty sure we talked about Lina interacting with her. Minnie isn't keen on her for some inexplicable reason. Nothing to do with her Reincarnates name........