asked to comment on the status of their deal, a PepsiCo spokeswoman said in an email that "Pepsi and Beyoncé have enjoyed a longstanding relationship and we continue to be fans of her and her work. She will not be featured in our 2015 commercial advertising." It doesn't look good with reports suggesting "Pepsi sales were down 4-7% once Beyoncé signed on."
As far as I know, Beyoncé, who has had ties to Pepsi for over 10 years, doesn't have any projects coming out this year. She's been very quiet lately, so it wouldn't make sense. I can definitely see them doing something with Rihanna or Katy Perry. Even if she was dumped, she got her money's worth when Pepsi spent $50 million to fund and sponsor her Super Bowl Halftime Show, her world tour and game changing visual album. She won at the end of the day.