More than likely. The non Disney owned restaurants sign contracts each year to operate in Disney - the restaurants' decision on whether to honor the dining plan is included in this. But Wolfgang Puck Cafe (TS) and the Wolfgang Puck Express locations (each a CS) have always signed on to this in the past. No reason to assume they would change now. Of course, nothing is guaranteed, but it seems unlikely they would refuse to honor the plan.
Note also that one Wolfgang Puck location (Wolfgang Puck Dining Room (Upstairs)) has never been on the plan.