It was later confirmed that the so called unscheduled maintenance was due to the authorities (FBI) going into their data center and gathering evidence about the coins deposited from Mt. Go to BTC-e. They said that they will resume by Aug. 6 but I doubt it will happened that quick.
Also worth mentioning that they will return funds for its customers. But the question is how long will it take them to give back the funds to its users.
Stop hoping for this exchange to come back. The owner itself is on the jail and crying. This must give a lesson for all traders that don't let your coins stay on an exchange. All exchange has a chance to collapse even though how trusted they are right now
They already refuse to acknowledge or maintain any connection with Vinnik. Yes, this is really an eye opener who still believes that having your life savings in an exchange is safe. Like we always says here, if you don't have control of the private keys, its not your coin. Also the Mt. Gox incident should already thought us a lesson or two. I'm just sayin'.