There have been rumors about interactive wands for months now, but nothing has been officially announced.
The idea is simple enough and a variation on what Disney have done in Epcot with Phineas & Ferb in the World Showcase area and in the Magic Kingdom with the Pirates Adventures. Basically it would be an RFID token that triggers some sort of animatronic or action in a specific location.
And described like that it sounds very simple and unimpressive, but consider a child purchasing a special interactive wand and then being able to levitate something...
The markers shown here are inscribed with what is immediately familiar to Harry Potter fans as a spell. Presumably then this is a trigger location for an action.