It emerged recently that driver manager Oksana Kosachenko has joined Petrov's former team Caterham as commercial director, in charge of acquiring new sponsors.
Petrov, who raced at Renault and Caterham between 2010 and last year, had targeted a return to F1 in 2014.
He told Russian website f1news.ru that his ambitions remain on track.
"I will control my own future, sorting out who will work with me and for whom I will be working next year," said the 28-year-old Russian.
"There will be some changes. I don't want to talk about it now, but in the near future it will all become clear."