It is also understood that Russian President Dmitry Medvedev won't be coming for the rugby - he'll come on a trade agreement related visit next year - and that Prime Minister Vladimir Putin will be sending his Deputy Prime Minister, Alexander Zhukov.
Mr Zhukov is also president of the Russian Olympic Committee.
New Caledonia and French Polynesia are associate members of the Pacific Islands Forum and their leaders will be in Auckland for the forum, Harold Martin and Oscar Temaru respectively.
The Prime Minister of Timor Leste, Xanana Gusmao, will also attend as an observer of the forum.
Foreign Minister Murray McCully yesterday announced that several foreign ministers will be in town for the Post Forum Dialogue on Friday.
They include French Foreign Minister and a former Prime Minister, Alain Juppé,
and Indonesian Foreign Minister Marty Natalegawa.
Also here will be United States Deputy Secretary of State Thomas Nides, United States Chinese Vice Foreign Minister Cui Tiankai, Canadian Parliamentary Secretary Deepak Obhrai, and Korean Vice Minister Min Dong-seok.
Mr McCully also said he expected high-level attendance from Japan, Italy and Britain, as well as representatives from Malaysia, the Philippines and Thailand.
Representatives from Luxembourg, Spain, Slovenia, Hungary, Finland, Singapore, Kyrgyzstan and Bhutan were also expected to visit during the week.