It won't happen. I guarantee it.
https://dodgechallenger.com/forums/m_6058/tm.htm No matter if you improve fuel mileage the demand will remain the same because then people drive more. Think about it. When it isn't costing you as much to drive, it doesn't seem as big a deal to go for a nice long drive on Sunday as it does when it is very expensive.
The problem is making changes in our pattern of fuel usage is very difficult. It can't be changed overnight. I'm not saying that we should look into options that could lower it, I'm just saying "don't hold your breath on that happenging."
BTW, if you would like to contribute articles about energy sources and other things, feel free to add to the "Latest Energy News" section in the Off Topic area. We could continue discussing this subject over there because we are getting a little off the topic in this post and section.