when will era 100 support epson projector bluetooth copyright protection?

Clearly people have different expectations based on their affinity for Sonos products. I (however naively) assumed that Sonos would, much like my Bose Headphones, speakers etc, work out of the box. Whether or not the protocol is widely adopted or not seems moot, the point I guess I am making is about ubiquity, and if you are going to add new functionality, why not design it with full compatibility. 

Not sure I see the reason behind a bluetooth audio product not being designed for TV / projector connectivity. If products have bluetooth functionality, then the expectation for them to work together is justifiable, surely

My expectations are not based on my affinity, but on the stated purpose of the company that made the product.  Why not make expand that functionality to greater compatibility?  I would guess that there is a license fee for scms-t, and there could very well be added hardware costs, firmware dev/test costs...for what amounts to a very limited number of consumers.   And again, even if was scms-t, you still would have lip sync issues since the Era speakers are designed for multiroom audio, with a built in delay/buffer, rather than for home theatre where the audio must match the video.

Which I’m sure is a big part of the reason why Sonos did not add bluetooth functionality in their products until relatively recently.  People have expectations from bluetooth that do not fit will with their multiroom audio system.  It’s not unreasonable to assume that a speaker can work as WiFi/multiroom audio and bluetooth speaker without any compromises, but that doesn’t make it true.  Perhaps Sonos should spend more time trying to educate consumers and ‘control expectations’ before the purchase (I don’t see this info anywhere on the product page), but a lot of consumers will just trust their assumptions and not put effort into better understanding, or they aren’t thinking of using the speaker for home theatre anyway.  As well, it’s probably not good marketing to list out all the things your speaker doesn’t do.

I’m bored of litigating this issue and arguing around something that I doubt can or will be resolved. As an update, I replaced my pretty old gen2 Google Chromecast and with a Xiaomi TV Stick 4K that comes with bluetooth audio connectivity and it’s connecting fine with the Era 100, so problem solved. 

The sole reason I picked the Xiaomi is because it 1) it has bluetoth audio support and, 2) can run off the power supplied by the projector’s USB, saving on additional wiring. It’s the second feature that differentiates it from other products like Google Chromecast for TV or the Amazon Fire Stick. I honestly didn’t do comprehensive research around this - figured anything Android is quite generic anyway. So far so good with this solution.

Sorry, if it wasn’t clear from my answer earlier, what this does is that it routes bluetooth audio through the streaming device rather than rely on the projector to do so, and therefore works around the problem of bluetooth compatibility between the Epson projector and the Sonos speaker.