The original 3DS isn't dead yet in Japan.
Two new colors for the original Nintendo 3DS line, Pure White and Clear Black, are set to release in Japan on October 10 for 15,000 yen. When they release, that will bring the number of available color variations for the original 3DS to five.
Recently, Nintendo discontinued the Ice White and Cosmo Black variations of the 3DS. These new units seemingly replace those old units. While the difference between the discontinued and new systems are negligible, the new units do have noticeably glossier surface. There is no word if these two colors will be released outside of Japan.