Fellow Australian Cameron Percy had indicated Smith was set to join the rebel tour.
The pair will meet at the O2 Arena, 30 years after their fathers last fought for a world title.
At 33 years old, Black Caps quick Trent Boult has decided his days of travelling the world for international cricket are just about over.
As one of the key pieces of their future, the Carolina Hurricanes have tied Martin Necas to a two-year, $6million deal.