I believe that I’ve seen Oz say that development on supporting the EZCad 3 boards hasn’t even been started yet. LightBurn will never give any definitive timelines for release of anything either.
I know you’ll lose the 3D capabilities by dropping down to a EZCad 2 board, as the EZCad 2 boards do not support that
Q-Pulse Width is supported for MOPA lasers on the EZCad 2 board with LightBurn though. Here is a layer from my MOPA machine: