According to the latest intel, Samsung actually plans to bring one of their Samsung Galaxy S6 devices to CES 2015 this year. Unfortunately, there isn't anything exciting to reveal about it as the general public won't get to see it.
Supposedly, one or more prototypes of the Galaxy S6 will be demoed to some of Samsung's partners in private meetings sometime this week during CES 2015. They are basically just demo units designed to help Sammy's partners prepare products for the actual launch later in the year.
Ah well... even though we won't get a glimpse of Samsung's supposedly fresh, new design for the Galaxy S series, there will be plenty of other awesome tech to check out throughout the event! We will keep you posted, so stay tuned!
Source: Samsung Galaxy S6 and its variant to be displayed during CES 2015 SamMobile