Many, many, people have "officially called it" over the years, but your welcome to do the same.
If the Lowe's expansion doesn't happen, I'd hope they are still in talks with other US national banners. This company needs a US national banner and it is due for one.
If Lowe's doesn't happen, I don't know what will happen to this stock. Probably nothing good unless the CEO decides it's time to do some promotion to keep it from dying.
That being said, the company will probably continue to go on and progress. As far as the stock gos, I couldn't say the same, but how well the stock is doing and how well the company is doing seem to be two completely different issues these days.