Epcot Cast have reported that characters from the upcoming Finding Dory have debuted in Turtle Talk with Crush at Epcot.

Here is the Disney Parks & Resorts announcement of the addition:

... guests visiting Epcot will be able to spot Dory and some of her friends from the new film “Finding Dory” at the park’s “Turtle Talk With Crush” attraction.

Some of her new pals you can expect to spot within the attraction include Destiny the whale shark, Bailey the beluga whale and Hank the “septopus” (that’s a seven-legged octopus). Crush’s son and best pal Squirt will also be swimming by for the first time. And you may spot Nemo and his dad Marlin.
The original Disney Parks & Resorts Announcement in March also included Disney California Adventure, although a debut date has yet to be reported:

When Crush the sea turtle swims up to the “Human Tank” at either Epcot or Disney California Adventure park this summer, he’ll be joined by Dory and some of her new friends from Disney•Pixar’s “Finding Dory”! You’ll be able to meet Destiny the whale shark, Bailey the beluga whale and Hank the “septopus” (that’s a seven-legged octopus, of course!). Crush’s very own mini-man Squirt will also be swimming by for the first time, and you might even catch a glimpse of Nemo and his dad Marlin.