Neil Patrick Harris on board for ‘Matrix 4,’ Jada Pinkett-Smith in talks to return as Niobe

The highly anticipated “Matrix” sequel is filling out with top-notch talent.

Neil Patrick Harris and Jada Pinkett-Smith are the latest names to be bandied about to join Keanu Reeves, Carrie-Anne Moss and newcomer Yahya Abdul-Mateen II for “The Matrix 4.”

Variety has announced that the “How I Met...