I don't think they will recover from this as in getting back old customers.
I have never seen a site, service or shop being not available this long when doing migration.
They have lost me for sure. I have maybe 10btc in various altcoins spread out across several accounts. They have some sort of emergency cashout thing going on but that would be a major pain in the ass for me as I am not 100% sure exactly what coin balances are in which accounts, just the overall. I know that was stupid on my part and I wont be making that mistake again.