Though Starbucks just promote their fall drinks,
I would like to talk about this product that
I think it will be launched successfully.

Starbucks Fall drinks:
Pumpkin Spice Latte,
Salted Caramel Mocha, and
Chocolate Chai Tea Latte

In fall, people would like to link with
pumpkin, chocolate, coffee...

"Some things are undeniably fall:
colorful leaves, cable knits and,
of course, rich fall flavors.
Now’s the time to wrap your chilled hands
around a welcoming Pumpkin Spice Latte or a rich
and creamy Salted Caramel Mocha.
Or try our new Chocolate Chai Tea Latte,
a chocolaty twist on a classically smooth fall weather favorite.
Fall drinks are back for a limited time."

Firstly, people like trying seasaonl taste,especailly limited-time-offering stuff.
Secondly, in the cold weather, any hot drinks is a good choice.
Thirdly, because of many Starbucks convenience stores,
People can find a Starbucks within a few miles.
Moreover, the price is set so affordable.
Why not try one?

By a way, there is a campaign - "Come Together".

Buy a drink for the next person in line.
Then you may get a free drink.
Starbucks promotes the act of kindness.
On the same time, promote its market as well.

People think buying a drink in Starbucks make them more commonality and humanity.
It is a kind of upgrading their moral level as well.

Therefore, I think this launch would success.