With the Galaxy Note III ready to launch next week, Samsung has likely already switched its focus back to the flagship Galaxy S series. According to a new report, production on the S5 is set to start by the end of the year. Korean site ET News claims Samsung is set to begin manufacturing metal casings for the upcoming smartphone by late 2013, suggesting the company may finally move away from it usual plastic design.

ET News also reports that an early model was recently developed in Europe and sent to Vietnam for testing. Samsung is apparently hoping to avoid the antenna issues Apple faced with its early attempts at metal housing, and may still offer expandable storage and removable batteries for the S5. A recent report—also from ET News—suggested that the Galaxy S5 will come equipped with a 16-megapixel camera when it hits the market next year.

Of course, it's still far too early to know anything about the Galaxy S5 for sure, and even if these reports are correct Samsung could easily change the handset's design between now and its 2014 release. For now, we're still focused on the imminent Galaxy Note III release.