Looks like pictures of the HTC Sense 4.0 UI has been leaked, and apparently from the company's upcoming Endeavor ROM.

With Mobile World Congress approaching just two weeks from now, Taiwanese manufacturer HTC is believed to launch a new device, HTC Endeavor. It looks like the ROM has been leaked recently, which also shows the upcoming HTC Sense 4.0 custom UI that would be layered on top of Google Android 4.0 Ice Cream Sandwich. There are various new screenshots including Sense themes for home screens in portrait and landscape, switching between home screen tabs, favorite contacts, lock screen and alert notifications. The Sense shortcuts on the bottom of the screen also appear to be closer to stock while the notifications on the lock screen could be redesigned.

Source: Pocketnow