Thank you for the encouragement. Serenade has not gained a lot of mainstream traction, but we use it internally at Elabs a lot, our product,
projectpuzzle.com is written in Serenade. The v2 branch has evolved out of what we've learned from doing several big Serenade projects, and from other JS frameworks. It's pretty experimental at the moment, but it's shaping up quite nicely. At the moment there's no roadmap or anything for it. We're still trying to figure out a coherent vision of where we want Serenade to end up.
Hopefully I'll have time to work out a more coherent vision going forward in the next couple of weeks.