On IRC I see some developers working on other text editors based on GtkTextView/GtkSourceView. It is a good thing in my opinion to have specialized text editors. They are easier to use and configure. A specialized application has a potentially better usability. A general-purpose text editor like gedit is of course still needed for languages not covered by a specialized text editor or IDE.
The problem is that creating a new text editor based on GtkSourceView is still quite a lot of work. Instead of reinventing the wheel, the idea is to make the gedit source code more reusable by moving it to GtkSourceView or to a git submodule. This wiki page has all the details, it keeps track of the progress made (see also the RoadMap), more details on the “why?”, and a paragraph on Anjuta.
This blog post was to make developers aware of this initiative. If you are interested, join us on the #gedit channel or the mailing list!