From reading around reports seem to state that only Ether and Erc 20 token created on their platform were taken.
Elementus have a chart showing what coins they think have been taken and the amount, although i don't know the accuracy of there research.
yes, those are the coins that were stolen, and we know for sure those coins won't come back. But the damage doesn't stop there.
Any company like cryptopia needs their daily profits to continue and honor its engagements; things like loans, rent, salaries, electricty, lawyer fees all continue to pile up while the New Zealand police sorts this out. Right now, we know that profits are not coming in, and we know this justice process will take a few months to a year.
Sorry guys, but they will auction off the depositor's coin in lots, and use the proceeds to pay back these debts piling up; unless of course the owners of Cryptopia step up and pay this out of their own pockets (which has also happened in the past, by the way).
It is essential that any sustainable trading scheme somehow repatriates the profits back to safety on a daily basis; a good coin trading strategy simply cannot allow a trader to leave coin at an exchange. Sooner or later things like this will happen.