You want this? I don't think it's very useful but anyway

Thanks, I've also been wanting to see it. It's not as useful practically speaking, but it's still a good visual. I've got a similar long term chart with exponential trend line in a spreadsheet.
If there is one thing interesting, it is the red line never went down since 2012. That means the expected price has always been going up, despite the long bear market from 2014-2016