We can't say for sure that this is Sammy's next flagship, but we can point out the thin bezels on the device. It also would appear that this model does employ some metal in its build. We've seen rumors about a "half-metal" version of Samsung's next flagship. There is also speculation about a version of the Galaxy S6 featuring a dual-edged curved display.
Earlier this morning, we passed along the latest rumor which has Samsung displaying several variants of the phone at CES, but only to certain partners. As usual when dealing with popular flagship phones, the mystery and the drama remains high until the unit is officially unveiled. With that in mind, it's back to the salt mines and as soon as we hear something new, we will pass it along to you.
Thanks for the tip, Jaromir!