Exciting news! Especially the thought of it being called the "Evo LTE." Sure, it's only a name, you can name it anything you want. But the Evo has been such a staple for Sprint's Android lineup - why change a good thing, right?
Source: http://www.androidpolice.com/2012/02/29/rumor-is-sprint-getting-its-own-variant-of-the-htc-one-x-or-something-eerily-similar/
(Well, where I got it anyway. The original source is referenced.)