Japanese reports say team boss Eddie Jordan has signed a deal with Mugen Honda for next season. So Prost and Jordan will make an engine switch; Peugeot for Prost and Honda for Jordan.
Ferrari driver Eddie Irvine has also hinted that Jordan driver Giancarlo Fisichella will team up with Benetton next season.
Eddie Jordan said: "This is another significant milestone for Jordan Grand Prix. We have worked hard for a long time to earn this opportunity and our partnership with Mugen-Honda will provide additional strength and depth to our package plus an unparalleled commitment to success."