There are new stories surfacing that the people left running the exchange are using the founder's death to exit scam.
I think it is more likely the founder has faked his death, and it is him that is still in control of the exchange's addresses.
If this is really an exit scam,I'm pretty sure that the QuadrigaCX's coins will be sold,or atleast moved to some other wallets.
Remember that Quadriga required all its customers to go through KYC procedures. Given that this looks like it has been going for months, with no cold wallets in existence and the owner just constantly skimming funds off for himself, it was quite possibly he has used some of these KYC documents to open accounts at other exchanges under other people's names and use them to cash out all the stolen coins. Doubly concerning for anyone who has lost their money on the exchange.