What is the lifecycle of the Marq Aviator Gen 2, When does Gen 3 come out?

The Marq Aviator Gen 2 runs the same software as the D2 Mach 1, a watch I already own. I decided to pull the trigger on the Marq Aviator Gen 2 due to its styling improvements. My question is how often does Garmin plan to refresh this watch? Is it going to be a yearly cycle like the mainstream aviation watches or less frequently. On one hand I would definitely like to always have the latest and greatest features Garmin plans to offer, but on the other hand upgrading every year is pretty darn expensive.

Thanks in advance for the help