Well, the rumor mill has fired up again, and it seems is if a infinity could be the replacement for the Patrol in 2010.
http://www.infiniti.com/qx/specifications.html
Heres the doco that suggests the replacement.
http://www.oesa.org/publications/articledetail.php?articleId=7137
“Infiniti QX [X61F] launches in 1Q 2010 and replaces Nissan Patrol/Nissan Safari entries.”