It's been rumored that IE8 will be Microsoft's final release of IE (When I asked this question, someone pointed me to an article on Slashdot -- Yes, I know, it's Slashdot, but it cited an article on InfoWorld -- in any case, there seems to be some legitimate concern regarding Microsoft's continued support for IE, at least in its present form).
What are their future plans for an HTML-rendering engine?
Microsoft is apparently not making great strides towards making the current Trident engine compliant with CSS3, so I was simply wondering if they are instead looking the replace it with a next-generation engine (I've heard the code-name "Triton") or abandoning it in favor of a competing platform (such as WebKit, as Reed Copsey points out in his answer).
Why the aggressive downvoting? This is a legitimate issue for anyone who is planning on using IE as an embedded control.