TheVerge is reporting that unnamed sources in the know have told them HTC and Samsung both have new 4G LTE WP7 devices on the way. Samsung is currently calling their phone the Mandel, and rumor has it that it will be packing a larger screen than the Focus S, which sits at 4.3 inches. HTC's phone is called the Radiant, and poked its head up earlier this year, sporting a post-Mango version of Windows Phone. Despite early speculation that the Radiant was running Tango, TheVerge's sources claim that neither of these new phones will have it.
No word yet on carriers, but HTC has been rumored to be working with AT&T, while Verizon has also been toying with the idea of a 4G Windows phone. Both phones are slated for release in early 2012, though perhaps not in time for CES, like Nokia's AT&T 4G handset hopefully will.
Update: According to WinSupersite's "exclusive," both the Radiant and the Mandel (referred to as Mendel) will be on AT&T, along with the Nokia Ace. While the release date for the HTC and Samsung handsets is listed as "before the middle of 2012," they say the Nokia Ace will be available come March 18. It is said that all of this will be revealed at CES.
Source: TheVerge, WinSupersite; Thanks to everyone for the tips!