The 36-year-old, who at one stage looked to be on the way out of the sport, then found some form leading to him signing a new contract last year.
Rossi, who leads the 2015 MotoGP world championship standings, says that he plans on racing into 2017 and beyond.
"I have a contract for two years and I hope it's not the last one," he said.
Rossi feels that being at the top so early in the season is a good omen for Yamaha.
"Leading the championship after two races doesn't mean a lot but it's good to be at the top after Austin because, on paper, this track is one of the most difficult for the Yamaha," he said.
"We always struggled to finish in the past with the front tyre but this year was better. I was more or less always in the top four," he added.
Rossi is one point ahead of Ducati's Andrea Dovizioso in the standings and five clear of Honda rider Marc Marquez.