Schmidt Peterson Motorsports will test the Italian next month at Sebring.
The battle between Felipe Nasr and Stoffel Vandoorne for second place in the Drivers’ standings comes to an end.
Palmer secured the GP2 drivers' title in the penultimate round at Sochi, Russia in October.
GP3 team Status Grand Prix have signed an agreement to acquire Caterham Racing.
Just like Formula One, GP2 Series will race for the first time in Russia this week.