After the trailer for Lego Sonic went live, Game Informer got information from TT Games about the next wave of content coming to Dimensions after its Year 2 launch in September.
Source: Game Informer

Year two of TT Games’ toys to life entry brings waves six through nine. Wave seven lands in November with the following sets:

Story Pack ($49.99)
Fantastic Beasts and Where to Find Them with Magical Congress toy pad set, Newt Scamander minifigure, Niffler

Level Pack ($29.99)
Sonic the Hedgehog with Sonic minifigure, Sonic Speedster, and The Tornado

Team Pack ($24.99)
Gremlins with Gizmo and Stripe minifigures, R.C. Racer, and Flash ’n’ Finish

Fun Packs ($11.99)

• Adventure Time with Marceline the Vampire Queen minifigure and Lunatic Amp (releasing first at Toys ‘R’ Us)
• E.T. The Extra Terrestrial with E.T. minifigure and Phone Home device
• Fantastic Beasts and Where to Find Them with Tina Goldstein and Swooping Evil