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Bitcoin will scale but off chain and its not going to work very well until many channels open up. I predict about 2 years if/when lightening network is really ready to jump into for the average Bitcoiner. Meanwhile top Alts are going to eat Bitcoin's lunch. Dash is just months away from Evolution release with massive on chain scalability. ETH will eat Bitcoins lunch too. ETH has major transactional volume now - over 550,000 transactions per day at sub penny fees and 13 sec. block times with total privacy Zknarks + off chain scaling about to ramp up with Raiden release.

Until then, other coins will be eons ahead in terms of scaling.

Precisely. There's so much development going on in ETH. ETH will have about 2% inflation per year with validators (stakers) earning around 7% a year off the gas fees. ETH as a currency, ETH as a smart contracts platform -ETH Eco-system will be huge. EOS will do up to 1 million transactions per second when it launches in June next year. Then there is going to be blockchains that loop them together forming an Internet of Blockchains with many extra features added. The future will be incredible in this space.