The official Twitter account for the One Piece franchise revealed on Sunday that Ryotaro Okiayu is the new voice of the character Kizaru (aka: Borsalino, pictured right in image below) in the One Piece anime after Unshō Ishizuka passed away last August. The character appears in the anime's 881st episode, which aired on Sunday.
Okiayu previously also voiced the character Kaku in One Piece.
The One Piece anime recently entered the new Reverie Arc, after finishing the "Whole Cake Island" arc that premiered in April 2017. One Piece is getting a new film in the franchise titled One Piece Stampede on August 9 to commemorate the TV anime's 20th anniversary.
Source: One Piece franchise's Twitter account