I don't think gentrification will take hold much in suburban areas. It's not the traditional urban environment gentrifiers like.
You say potato, I say poutine. It may not be classic “gentrification”, but there will be an increase in residential rents, and turnover in retail as developers push them out to build new commercial developments (and raise rents and individual square footage requirements for tenants).
Doesn’t have to mean an influx of high end upscale folks, but it will put pressure on many to move, and will diminish the opportunity for small business and retail entrepreneurs.