"Hipsters"? Who are these evil "hipsters" to which you all are referring? Why must we pigeonhole people into dorky categories such as this?
Regarding the concept of gentrification in the downtown/north end, what does this mean, really? A couple of generations ago, the Gottingen Street area was one of the main shopping districts of the city - the place to go downtown. As city growth/change happened back 40 - 50 years ago, it went into decline as it was neglected for various reasons (such as the growth of suburban malls, building of the Cogswell interchange, etc.). Now as we start to see Halifax evolve this area is seeing a rebirth.
Truthfully, from somebody who has lived in the Halifax area a long time, it's nice to see this neighborhood turn around and see some growth and new life. From my youth I remember this place as being a neighbourhood that you just didn't walk through - whether real or imaginary, that was it's reputation. These days, I don't hear any threats of tearing down Uniacke Square, so I don't see people of lower income being completely forced out of the neighborhood. Therefore, what can it hurt if there is some new healthy growth in the area?
It almost seems as though there is an expectation that once a neighbourhood hits a low point, it should remain that way until the end of time to avoid "gentrification". Cities change, neighborhoods change, people will live where they can afford to live. I think it's the natural ebb and flow of city neighborhoods.
With the idea developing now to provide the opportunities for people of all income ranges to live in the same neighborhood, I think there are a lot of positive effects that can come from this revitalization. Wielding terms like gentrification seems like trying to somehow put a negative slant to the situation - evil, rich "hipsters" swooping in and taking the land from poor downtrodden folk - rather than see it as it really is. The neighbourhood is evolving and will continue to do so just as it does in many cities all over the country. Overall, I don't see it as a bad thing.