I doubt it will be take another 800 days as It's very likely with LN being on active development, a lot of services starting to accept bitcoin and more people are being exposed to bitcoin.

A lot of people will come out, talk and predict a price increase/decrease but the sad truth is that no one knows. If you're true a believer in the technology and you're not really in need (like going to starve to death)e, you will hold but If you're just here for the money, the first thing you will do is panic sell.