I listened to a very interesting interview on the CBC a few months ago about French in New Brunswick. The most interesting thing to me, besides hearing chiac, was who the New Brunswickers perceived as the biggest threat to Acadian French. The usual line out of Quebec is that the maudit anglais are to blame for everything and they're quashing French in Quebec, but not so in New Brunswick. The biggest threat, according to them, was francophones from Quebec!
Many of the teachers in Acadie were hired from Quebec and they taught 1) don't intersperse English with French (no chiac!) and 2) "this (Quebecois French) is what a 'correct' Canadian French accent is supposed to sound like".
Same thing with Franco-Manitobans, from what I've heard.