ServiceStack modules are so interesting. Iplugin interface also so good for Rest services. But where is pluggable mvc? :) Do you have any plan or else? When I say pluggable Mvc I mean Pluggable Areas!
Why not just simply ask if there are a plugin system for ASP.NET MVC3?
I've described how you can use my contrib project to create plugins: http://blog.gauffin.org/2012/05/griffin-mvccontrib-the-plugin-system/