The beauty of Steem is that mass adoption may not depend on the price or the adoption of other big cryptos such as Bitcoin. With the active dapps that are being developed here and seeing success by themselves it will be enough that one of them does something unique that makes them go viral and everyone will flock to Steem because of it. My bet is on @dlive lately.
I believe in the future of Steem too. @dlive team is really doing a great job. I've been following their updates, fanbase, etc seem really cool.