Sauber look set to be first out of the blocks with their 2017 car.
Auto Motor und Sport reports that the Swiss team have already booked a date with the FIA to homologate their car for the new regulations - December 19.
Prior to an investor bailout, Sauber almost collapsed financially this year, and so the decision to use the 2016 Ferrari engine in 2017 was viewed by some as an act of desperation.
However, boss Monisha Kaltenborn insists that it is for technical reasons.
"We know there is a big change coming up, so with the size we are the capacity we have, we needed to focus on that change," she said.
However, team driver Felipe Nasr looks set to lose his race cockpit for 2017, after his sponsor Banco do Brasil wound back the value of the deal.
"What I see is that everyone is interested in money," he told Brazil's UOL Esporte. "Unfortunately, this is the reality of formula one - money talking louder than talent."
Sauber ended 2016 in 10th place in the constructors' championship with two points.