The guy who posted that at the Nickelback forums is a member of the Admin team, so its looking quite likely if you ask me!!
And why would Nickelback end their tour in NJ, if it didnt have anything to do with Bon Jovi? Sounds a bit of a coincidence to be honest!

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2000: Stoke. 2001: Huddersfield, Cardiff. 2002: London. 2003: Glasgow, Wolverhampton, Manchester, London.
2006: Dusseldorf, Glasgow, Manchester, Coventry, Southampton, MK x2, Hull, NJ x3.
2007: London JBJ Q&A, London, NJ x3. 2008: Dublin, Manchester, Coventry, Bristol, London x2.
2010: NJ x3, London x4. 2011: Munich, Manchester, London, Dublin x2, Lisbon. 2012: RS London.
2013: Manchester, Birmingham, Dublin, London. 2014: RS Belfast. 2016: London. 2019: Dublin x2, Liverpool, London