Australia, New Zealand and Papua New Guinea will host the tournament, from October 27 to December 2, 2017.
The World Cup draw was announced last week with Tonga drawn to play New Zealand, Samoa and Scotland in Pool B.
The Mate Ma'a Tonga won't play any fixture or gather again this year despite a big year coming up.
In October the Kiwis will play Australia, Samoa is scheduled to host Fiji and Papua New Guinea will conduct a training camp but Tonga's coach Kristian Woolf said there were no plans for his squad, which he believed was a positive.