Each new chain will be a new snapshot (except for resets in the event of a major bug in the month of March for the BitShares XT network)
The assets that will be included are:
BTC, GLD, SLV, USD, CNY and perhaps a few other major currencies.
As 5% interest and variable interest chains will require additional development, we will take a new snapshot prior to launching those chains.
First chain, XT will have no interest.