Sony Ericsson has taken to the company’s Facebook page to tease a “big announcement” coming at next week’s Consumer Electronics Show. Keen-eyed readers suggest that the teaser images, pictured above, could depict the sequel to the Xperia Arc, though nothing has been confirmed. Over the past few weeks we have seen various Sony leaks suggesting that the company will soon announce a mega-phone set to launch on AT&T, code-named the LT28at. Sony Ericsson also recently registered a new trademark for the name Xperia Ion, and rumors have suggested that the “Nozomi” smartphone may land at this year’s show as well. Whether it is an Xperia Ion, Arc HD or the Nozomi, Sony looks to be gearing up for something big at this year’s Consumer Electronics Show.