Plazma Burst 3 is meant to be a sequel to Plazma Burst 2, hopefully containing both Plazma Burst: Forward to the Past and Plazma Burst 2 campaigns.
I post monthly development updates on
my Patreon page - mostly game engine & gameplay-related ones,
often with videos (like
this and
this).
Development posts look like
this. You can send direct messages to me via Patreon or simply support my efforts this way.
Closed Beta is already available.
Completion date of full Plazma Burst 3 with campaign mode is unknown by now. But it is something I'm working on.
PS: Plazma Burst 2.5 is a temporary name I've been using for Plazma Burst 3 without campaign mode, although I'm working towards game that will come with campaign mode at this point.
PSS:
My Twitter page contains old development progress updates, though I no longer use it since it is hiding my tweets from unregistered Twitter users.
I do not work on Star Defenders 2D as one of my main project anymore - game is open-source and is still updated by the community. You can find some community-hosted websites dedicated to it.