Thompson, 26, was touring Queensland with the NZ Maori side, when he was added to the national side and will assemble with the Kiwis on the Gold Coast today.
Originally from Tauranga, Thomspon moved to Australia as a teenager and played three seasons for the Gold Coast Titans, before joining the Tigers in 2013.
He joins centre Sosaia Feki, prop Suaia Matagi, second row Jason Taumalolo and wing Dallin Watene-Zelezniak as rookies in the national side, although Taumalolo was a non-playing member of the 2012 Anzac Test squad.
The Kiwis open their Four Nations account against Australia at Brisbane's Suncorp Stadium, October 25.
Meanwhile, the New Zealand Rugby League's jury of appeal is currently working through a process to determine who will face the Canterbury Bulls in Saturday's NZRL National Premiership final.
The Bulls were elevated to the title game on Wednesday, after they successfully protested against Counties Manukau Stingrays for fielding an ineligible player in their regular-season fixture last month.
Counties won that game, but lost the competition points to slip out of the final, but may yet be re-instated, pending a subsequent protest against defending champions Akarana Falcons for the same offence.
"We're working hard to resolve this situation so that the two finalists can prepare themselves appropriately for the game," says NZRL chief executive Phil Holden.
A resolution is expected some time today.
