Blockchain Technology is the star. It provides the solution to the double-spend problem that has plagued electronic forms of money. Truly revolutionary. Other positives as well but that's the big one.
Bitcoin, Litecoin, etc. are merely the current players. Too early to tell which ones (if even invented yet) ultimately become the mainstays. That said, Bitcoin (BTC or BCH) has early-adopter name recognition that gives it a leg up in that race.
As far as "Structure" goes, my money is on the FED (and all other CBs) will go from private to public (absorbed by each countries Treasuries) as the first huge step. Need to keep the store shelves stocked so I don't buy the hype of the $ going bye-bye in an instant. Definitely need a debt jubilee (see world history) of some kind for sure.