Nope, there is no any solution without using OWIN. Why do you want to get rid of it? Dashboard should somehow interact with request and response data, without OWIN it is possible through System.Web (we say no to System.Web), or via the new HTTP abstractions that come with ASP.NET 5.
I don’t want to have two dashboards in a project (one for OWIN and one for ASP.NET 5), and I don’t want to add yet another abstraction for abstraction to support different runtimes. OWIN is supported by all the ASP.NET worlds, why don’t use it?