Some of your guaranteed reward encounters will be different for Season 2. You’ll encounter these Pokémon at each listed rank:
Stunfisk starting at rank 4
Rufflet starting at rank 8
Scraggy starting at rank 9.
If you reach rank 10, you’ll earn a new avatar pose!
Trainers who finish Season 2 at rank 7 or higher will receive an
Elite Fast TM rather than an Elite Charged TM. Other than that, end-of-season rewards will stay the same as in Season 1.