The game's Summer Nights update tells us this much as it adds hot backyard parties to the mix until August 13th.
This
includes seven new zombies dressed for the climate including the Hot
Dog Imp. Five new costumes have been thrown in for you to collect as
well.
There are also explosive firework pinatas now and a
special-edition plant called the Strawburst that allows for "jamming for
a limited time."
Plus, you can try out the summertime Vasebreaker mode, which gives you "sparklers with every smash."
Finally, there are new repeatable quests for Wild West, Far Future, and Dark Ages. Got all that? Good.
You can download Plants vs. Zombies 2 with this new update for free on the App Store and Google Play.