Microsoft Spartan Browser to be launched with Windows 10. Yes the latest report say that IE is going to be closed, as IE continues to lose market share.
Microsoft Spartan Browser is being built as a revamped, lightweight, extension-enabled browser that happens to have a similar look and feel to both Chrome and Mozilla Firefox. The browser will use Microsoft’s Chakra JavaScript engine and Microsoft’s Trident rendering engine.
IE 11 might temporarily be available for backward compatibility purposes in Windows 10