After the successful launch of OnePlus 3T Colette edition, yesterday (March 22, 2017) OnePlus announced this new limited edition OnePlus 3T through their official forum. Unlike the Colette edition, this Midnight Black edition will be available worldwide.
OnePlus has been working on this special edition for close to a year and they have finalized this all-black version from 30 variants. This limited edition OnePlus 3T is made up of the same aluminum that was used in the original OnePlus 3 and 3T. This Midnight Black edition will only be available in 128GB variant. This phone will be available from March 31 with the price tag of ₹34,999 in India through OnePlus official web store only. Globally this phone will be available from March 24 via HYPEBEAST.
Source: OnePlus forum