Caveat: I'm always wrong about predictions, and the following are my opinions, crafted after careful consultation with the voices in my head.
Keystone was never going to move a drop of oil. The former POTUS approved it to kill all political/economic will in Canada for a pipe of any consequence either to eastern Canada or tidewater. It worked beautifully and Energy East was dead within 2 months.
Which leads us to --> The AB gov put up to $7B into a project that a 5th grader could see would never fly. And said government gave away $4.5B to energy co's without attaching a single job to it(in fact, there were instant layoffs). Even the most inept of leaders would have figured out a way to get a few hundred, or thousand jobs out of that one. And it took them about 10 seconds (I'm exaggerating) to lose almost $2B in pension money.
And instead of cooperating with the feds in every way possible to try to make sure the one pipe that can take our mud to the coast happens as quickly as possible, they continue to pour vinegar on the hive, and wonder why they're not getting the honey.
Which leads us to --> As long as AB has leadership who excel at shedding jobs, losing money, and blaming the feds for everything, AB will struggle. We will never diversify, because if it's not energy, these guys take the attitude of, "kill it before it grows." We can never be a tech hub because there is an unwritten rule that anyone who wants to be one must be within 3 hours by airplane to Silicon Valley.
And the Canadian Gov is another problem - and has been through all PM's of the last 50 years - placing roadblocks in the way of Canada's energy while importing from afar.
As well, some of the mega investors have gone. They're thinking, "Why should I invest a trillion dollars into this thing that I have no control over, and which *might* make me some money in 10 years or go bust, in an environment that is somewhat hostile to business, when I can drop a few billion into a project in Nigeria, or North Dakota, or ___________ and get my money back in 18 months?"
Which leads us to --> a decade of more layoffs, economic decline, and frustration, other than the odd mini-booms caused by inevitable jumps in oil prices.
My $.02, worth exactly that.