I recently heard that in the year of 2017 Marvel will be making another Guardians of the Galaxy movie. I saw the trailer for it but it doesn't look like Chris Pratt will be in it. Is that true or is that just a fan made trailer?

Chris Pratt ==> Peter Quill "Star Lord"
Zoe Saldana ==> Gamora
Dave Bautista ==> Drax the Destroyer
Vin Diesel ==> Groot
Bradley Cooper ==> Rocket