Expect the coins to be gone. It is highly improbable that Ukyo will honor the terms of the loan as he has shown criminal behavior, and borderline mental illness in his attempts rationalize his behavior.

Look at the facts:

1) Ukyo lied about all the coins that were being deposited to WeExchange being unavailable due to a technical error.

2) Ukyo owes millions of dollars of BTC to users who deposited to WeExchange and has not given any reason beyond 'the coins are gone'.

3) Ukyo continued to accept deposits to WeExchange for over 2 months, knowing fully that we has unable to let anyone withdraw the BTC they deposited.

I think it is safe to say after reading 1000s of posts on the subjects that it is most likely that Ukyo treated deposits to WeExchange as his own personal wallet. He then made some gambling investments that blew up in his face at lost all the money.  He lost money on Labcoin, Active Mining, and likely sold BTC into cash thinking that the high of $260 was a good time to sell, when in reality , it is probably never going back to this figure again. Of course I can't say I'm 100% -- the only person who knows is Ukyo and he is conveniently not telling. Which should be a red flag.

He is thief and what he did was not only unbelievably stupid, it was just plain illegal.  It is not even a matter of factors out of his control, he simply stole and lost millions of users' money. It is quite the mess.  

If you are going go the route of legal action the good news is his identity is known.  The bad news is a) legal action is expensive  b) it is unlikely to recover much funds as he likely lost much of them.  At the least though it would be satisfying to see him criminally charged, forced into bankruptcy, and have to tell us (finally) in a court of law what he actually did.

He's been buying for time now for 2.5 months, but it looks like finally people are starting to realize that they've been ripped off, and the house of cards is starting to crumble.