By 2021 I predict big companies like Steam, eBay or even Amazon starting to accept Bitcoin payments through a much more robust and user friendly LN. Coupled with the store of value properties which will remain as solid as always, the combination will make the price go beyond $100,000.
I wish you are right - but that scenario is overly optimistic. Steam used to accept Bitcoin and that option has been removed some time ago.
There is no telling if Gabe will be eager to accept Bitcoin again anytime soon, if ever.
LN on paper seems amazing concept - but we could say the same about SegWit and we all know what happened and how difficult it was to introduce it.