[Balanor]

EDIT: I don't think I was very clear. Does anyone know if you can still Cast, use Wild Shape, and summon a Companion if a Druid is no longer Neutral in this PW?

In Thay there is nothing restricting a Druid from using those abilities if they are no longer neutral. However, if a DM so deems it appropriate, your PC may 'fall from grace' with your god at which point no spells or abilities like Wild Shape or Animal Companion can be used. Setting fallen status is at the DM's discretion however.