We don't have plans for a steam injector for Dome Gen 2 Series at this stage.
The larger floor space in the Dome (Gen 2) and Dome XL (Gen 2) allows space to place a small pan of water in the oven to produce steam. Designing Dome Gen 2 Series without a steam injector allowed us to increase the vault height of the oven, providing a more even deck temperature compared to the original Dome, and aid thermal performance and heat up times.