Microsoft has outlined its plans for the next stage of development for the new Chromium-based Edge browser, and those plans include a trio of new features.
The first is a big nod to enterprise customers: a built-in Internet Explorer mode. Chrome has a number of extensions that accomplish much the same thing—they create a new tab in the browser and use the Internet Explorer 11 engine, rather than the Chrome engine, to draw that tab. For Edge, this capability will be built in.
Enterprises can already create a compatibility list, the Enterprise Mode Site List, which the current Edge browser uses to know which (internal, line-of-business) sites should be shown in Internet Explorer 11. The new Edge will use this same list to determine when to use Internet Explorer.