Hi Kenneth Jackson,
Thank you for writing.
We will add extensible (binary) serialization to our TODO list. However, there are many other tasks with higher priority so I cannot give you a precise timeframe at the moment.
It will be helpful if you share additional details about your scenario and how it will benefit from serialization. Suggestions and ideas regarding serialization are most welcome.
Please contact us again if you have any additional questions.
All the best,
the Telerik team