IronSpeed[
^] is a product, whereas MVC is a pattern and ASP.NET MVC provides you with the controls — Model-view-controller, and you would have to manually develop all of the elements in these categories.
As far as I can think of, there is no possible way to convert IronSpeed generated pages, to ASP.NET MVC web application, let alone an HTML one. There is however a way to add ASP.NET controls to IronSpeed,
Iron Speed Designer - Adding Custom ASP.NET Tags To Pages[
^], that might help you in understanding how IronSpeed works so that you can
rewrite it — conversion is not possible at least.