I want to believe, but I'm worried that it won't work any better than their past efforts to address fragmentation. eg Android Update Alliance (2011). I'm sure there were other failed promises, but I can't recall offhand.
That alliance sounds like just the motivation/PR part. Treble is the "remove the actual technical hurdle that made it hard" part. That makes me more hopeful.
https://arstechnica.com/gadgets/2012/06/what-happened-to-the...