Confirmed.
Following Trigger: Next Generation Tiga series, the next is Decker, which leaks implied to be under Next Generation Dyna title.
No doubt Gaia will get same treatment, not sure about Cosmos as Cosmos not considered part of "trio" despite themed being continuation of Gaia.
At least for Decker, Dyna actor available so you can expect actual cameo after absent of Daigo in Trigger.