Here are some links to NH fish and game about wolves.
http://www.wildnh.com/Hunting/Huntin...ndout_NHFG.pdf
If F&G has a section in the current year trappers guide about avoiding these animals I would have to think that they think it is highly probable to have wolves in NH.
and another
http://www.wildnh.com/Wildlife/Wildl...ort_013004.htm
and one more (Go to page 32 of this PDF as it is a long one)
http://www.wildnh.com/Wildlife/Wildl..._A_Mammals.pdf
These articles have some great information regarding wolves in and around New Hampshire.