Yes, bit difficult at times to get the full facts from MS statements. This is a from a report dated yesterday:
Speaking at Microsoft Convergence yesterday, Microsoft's marketing chief Chris Capossela [said]... "We’ll continue to have Internet Explorer, but we’ll also have a new browser called Project Spartan."
Internet Explorer will still exist in some versions of Windows 10 mainly for enterprise compatibility.
http://www.theverge.com/2015/3/17/8230631/microsoft-is-killing-off-the-internet-explorer-brandFrom an older report on theverge:
Microsoft confirms that Windows 10 will ship with two browsers... but it’s possible Microsoft may choose to only ship Internet Explorer with enterprise copies of the operating system.
http://www.theverge.com/2015/1/22/7872509/microsoft-windows-10-internet-explorer-spartan-browsersGiven that quite a lot of Windows users have stuck with IE despite Google Chrome and Firefox, etc, etc. being freely available, maybe not all users will like Spartan (or whatever it gets called) and will want to stick with IE, or will abandon Spartan for Chrome/Firefox if they can't still use IE.
From what I can see, Spartan won't (as things stand) run on Windows 7 (or 8.1) so, if MS can't tempt people to use Windows 10, IE might still be around for a while.