I’ll believe it when I see it but word on the street is that Microsoft has something different planned for Windows 10, which should launch later in 2015. Mary Jo Foley:
There’s been talk for a while that Microsoft was going to make some big changes to Internet Explorer in the Windows 10 time frame, making IE “Spartan” look and feel more like Chrome and Firefox… However, if my sources are right, Spartan is not IE 12. Instead, Spartan is a new, light-weight browser Microsoft is building.
Windows 10 (at least the desktop version) will ship with both Spartan and IE 11, my sources say. IE 11 will be there for backward-compatibility’s sake. Spartan will be available for both desktop and mobile (phone/tablet) versions of Windows 10
Five years too late.