Hone Harawira and the Maori Party have split for good, odds of a far left party are becoming increasingly real. http://tvnz.co.nz/politics-news/harawira-quits-maori-party-4039175
"Mr Harawira said he had promised not to stand against the Maori Party in any
other electorates in November.
In return its leadership had agreed not to stand a
candidate against him in Te Tai Tokerau, he said."
That quote is very telling, it strongly indicates he will not stay an independent but will form another party around him otherwise why else would he agree not to stand outside Te Tai Tokerau?
Because obviously he would choose to stand in Te Tai Tokerau himself! Thus the agreement is referring to any future party he might be part of creating.
And unless Labour (or National! ha) can take Te Tai Tokerau then any new party that decides to form with him will be able to bypass the 5% threshold (which I personal believe should be abolished).