Related to wild magic sorcerer: i would not be surprised if they implement the wild magic surge table to some extent (i can for example imagine you can incidentally change your hair colour for the rest of the game or more temporarily cast the attack spell to yourself instead of the enemy). Larian typically likes crazy, never-before-introduced-this-way things, they consider these as a challenge and usually once a crazy feature is implemented (like turning somebody into a chicken ala DOS2) it can be advertised better as a unique feature.
This is actually one thing I like in Larian, they are not afraid to try out things people dont expect them to do. Maybe sometimes its a miss, but if it turns out great, they created something unique.