Play-Asia has announced that the Pearl White New Nintendo 3DS XL, originally a Japanese exclusive, will be available in the US in December, 2015. The system is already available for pre-order and costs $239.99.
Here are details from Play-Asia:
A Pearl White version of the New Nintendo 3DS XL will be releasing with full NTSC U/C compatibility early December, 2015. The Pearl White color design has currently only been announced in Asia & Japan, with no word of a domestic US release.