Turbine stopped updating this map back in 2011 before Rise of Isengard launched. At the time Turbine stated that a new interactive map would be deployed at some time in the future. It sounded Turbine was dropping or greatly reducing support for the web features because a entire new web service is being developed. There has been no indication as to if or when we are going to get the new functionality.
Hopefully it will be part of the run up to the launch of the Riders of Rohan expansion. Or soon after the launch depending how work is going.
Unless stated otherwise, all content in this post is My Personal Opinion.