Plants Vs Zombies getting a sequel ?

According To a Cryptic Message from PopCap Games to PC Gamer,Plants Vs Zombies is getting a sequel.

As you can see, it depicts a zombie hand asking that we save the August 2 date. You’ll also notice the “S.F.” bit, presumably a reference to San Francisco, California. Our best guess? Either PvZ 2’s packing its seed bags and moving to a lawn somewhere in San Francisco – which would have almost no bearing on what the game looks or plays like – or an unveiling event’s taking place in good ol’ San Fran.

Granted, this could also be some kind of big bash for it's rumoured console retail release. But there's nothing wrong to assume that it's sequel is surely underway.

Plants Vs Zombies was Released in 2009 For the PC.