In a research note today for TF International Securities, seen by MacRumors, Kuo said Taiwanese manufacturer Wistron will be the primary supplier of parts for the scissor switch keyboards in 2020.
It is unclear if this represents a delay of the widely rumored 16-inch MacBook Pro, which Kuo said would launch in the fourth quarter of 2019 with a scissor switch keyboard. There was some hope that Apple would announce the 16-inch MacBook Pro with a press release this morning, but that didn't happen.
Kuo has previously predicted that Apple will transition its entire notebook lineup to switchboard keyboards in 2020, including all MacBook Pro and MacBook Air models. The last MacBook Pro to feature scissor switches was released in 2015 before Apple moved to its problematic butterfly mechanism.