The future of Bitcoin is still unclear as yet, with regulators and banks being against it which I doubt that this could have a huge affect on bitcoin's future.
But the mining difficulty and energy consumption on the other hand has me worried though because this issue got people questioning the profitabilty of mining and long duration of mining.
I am afraid that if these issues aren't dealt with now there won't be a Bitcoin future to look forward to.
Hopefully in the near future these issues will be a thing of the past.