As some users have now mentioned, there is a new dedicated website for CocosSharp at http://mono.github.io/CocosSharp/
On the front-page you'll be able to monitor the progress of upcoming releases and you'll be able to head over to the contribute page if you're after more fine-grained information about the upcoming new features.
Additionally, the bottom of the contribute page contains a The road to v2.0 section which outlines a road-map towards version 2.0 of CocosSharp. This is by no means a fixed set of milestones and we definitely encourage the community to participate in providing their input.
We hope that provides more transparency in terms of the trajectory of CocosSharp and look forward to a more active and vibrant CocosSharp community!