European F3's Antonio Giovinazzi and GP3's Artur Janosz will get their first runs in the GP2 series in the post-season test at Yas Marina.
Giovinazzi will run in Carlin's GP2 machine, joining the team from the afternoon session of Day 2 onwards after having completed his rookie test with Audi in the DTM.
The Italian has been part of Carlin's F3 stable since 2014 and scored eight wins for the squad in European F3, finishing runner-up this year.
Dean Stoneman and Richie Stanaway are the other drivers joining Carlin for the test, the former getting Wednesday and Thursday and the latter - Wednesday, the morning Thursday session and Friday.
Over at Trident, Janosz will take over from GP3 teammate Luca Ghiotto on Day 2 and will see out the test.
The Polish racer finished runner-up in Euroformula Open in 2014 and was 14th in his debut season in GP3.
With the duties in the other car taken up by Jimmy Eriksson, Zoel Amberg and a yet to be confirmed third driver, Ghiotto will be moving on after Wednesday, joining Racing Engineering for Day 2.