Okay, here's the deal: I have designed my next saber, and effectively, the main feature I'm planning can only be powered by an open-source board design. I was planning on going DIYino again, but I've done four DIYinos now, and I would like to try my hand at a Teensysaber.
Now, I own one Proffie, but because of the aforementioned main feature, I can't use it for this saber. A teensy+Teensysaber v3 setup is pretty much the only viable option. I can make my own Teensysaber v3 shield; I can get the parts easy enough and have access to a reflow station that I've been meaning to learn how to use for some time, so this would be the perfect project for it.
What I'm more concerned about is long term viability of the teensysaber v3, now that the proffieboard is a thing. Is there going to come a point, say, a year or so down the line, where future firmware updates are going to be proffieboard exclusive, or something like that?