As I've been saying for ages, Coinbase is exactly like AOL. Eventualy everyone will want a real Bitcoin service, just like AOL users wanted a real ISP. Thinking otherwise would mean almost everyone in the USA would be on AOL now, like thinking all Bitcoin use will be on Coinbase.
Coinbase is the "Bitcoin Gateway Drug" the "BTC Bicycle with Training Wheels". This 2fa lawsuit will alert many people to the fact that you don't need Coinbase to use Bitcoin and that every other way of using it is superior to Coinbase, just like AOL was inferior to everything.
When services are in place to make it easy to migrate from Coinbase, it will die faster than AOL dd. And Coinbase can't make it hard to move your money from them. AOL made it very hard to leave their email service; no tool to export your contact list, locking users in with it.
They knew the address book was what kept their users trapped. Coinbase can't use that as a way of locking in users. Once you have your Bitcoin on a real Bitcoin wallet, that's it. It's one transaction that they MUST make, and are legally required to make, unlike AOL contacts.
All it will take is the right circumstances and a news trigger to cause Coinbase to totally collapse. There is no future world where Bitcoin users only have one wallet. EVERYONE will have more than one, and they'll wake up and realise that they don't need Coinbase at all.
By then, Coinbase will probably have pivoted to a BitMEX style model, servicing only Fortune 500 companies. That's fine. Consumer Bitcoin on the other hand, will be in a total free market of Samurai Wallet users, supplied by Azteco, where everyone is their own ISP...I mean Bank.