I'm guessing around another year. This mini, as every mini before it, has delayed it exponentially. I mean, this was supposed to be a one month project, and it's taken him so far since July, all the way to basically October. And he's supposed to work for one month on Overbreed, before working on the next mini. Assuming he makes progress animating Overbreed another 25%, before taking a break for another mini that will take him ~3 months, breaks for holidays, then another 25%, then another mini, then the 2nd pass on the animations another month, then another mini, +more holiday time, then the next month he works on the audio and lip-sync, if he gets it back on time, then another mini +summer vacation, and finally release. If he'd work on Overbreed for 3 months straight, instead of making an unrelated Overwatch project, to take a break from his Overwatch project, we'd have been close to release already. But that's not how he works.
I just want Blue Star Episode 4, man. So hopefully around the time the next Mass Effect releases.
If Bioware survives Dragon Flop: The Failhard's launch, lel.