The 18-year-old will swap to the M2 Competition team for this series, raced over five weekends.
Lynn arrives from an impressive debut at last month's Macau Grand Prix. He took pole position on the daunting street circuit - the first rookie to do so since 2006 - and finished on the podium in both the qualification race and the Formula 3 Grand Prix.
In 2011 Lynn was ninth in TRS with one win, three podium finishes and a fastest lap. He dominated the UK Formula Renault 2.0 series with 12 wins from 20 starts, a series record. He finished fourth in this year's British Formula 3 series with a win, two pole positions, nine podium finishes and five fastest laps.
Also returning is Thailand's Tanart Sathienthirakul, who competed as a rookie this year.
He made a capable transition to wings-and-slicks racecars and raced in the Formula Renault 2.0 series this year. Sathienthirakul, 20, will race with ETEC Motorsport.
Alongside Sathienthirakul will be 19-year-old Colombian Tatiana Calderon. She has a strong background in karting, finishing sixth in the 2011 US Star Mazda Championship and ninth in the Formula 3 Open series in Europe. Other imports include Jann Mardenborough (Britain), 16-year-old Akash Nandy (Malaysia), and Norwegian Dennis Olsen.