I think one of the biggest issues fusion power needs to deal with is whether or not it's worth the money. Renewable energy has gained serious momentum in the past years, and while it takes up significantly more land-mass-mass (things like solar panels and wind turbines), it requires less research and development than fusion, and is advancing at a significant pace. Contrast this with something like nuclear fusion, that has been under development for decades, and still has yet to produce a long term viable product.
The one area I still think I see fusion reactors succeeding in, is that they can theoretically use nuclear waste as a fuel[0][1]. However, outside of Transatomic Power, I really don't see many fusion companies interested in dealing with that issue. Given fusions history of failure, I think that fusion energy really needs a hell of a selling point beyond a simple "we make energy" to be able to succeed. I think that selling point doesn't get much better than using nuclear waste as fuel.
The one area I still think I see fusion reactors succeeding in, is that they can theoretically use nuclear waste as a fuel[0][1]. However, outside of Transatomic Power, I really don't see many fusion companies interested in dealing with that issue. Given fusions history of failure, I think that fusion energy really needs a hell of a selling point beyond a simple "we make energy" to be able to succeed. I think that selling point doesn't get much better than using nuclear waste as fuel.
[0] http://www.transatomicpower.com/
[1] https://www.youtube.com/watch?v=4UXXwWOImm8