I see a lot of references in the announcement post about certain events occurring when the exchange from CAI > CAIx is complete.  I'm assuming this means when all 1.6 million CAIx are gone on CoinSwap.  My question is, what if this never happens?  For example, someone forgot about their CAI in some wallet and never make the exchange.

If this turns out to be the case (which is very likely), will this prevent the switchover to CAIx on exchanges and such?  Also, in the ANN post it says that mining will end on 5/18.  If there is still CAIx left to be exchanged on CoinSwap will mining of CAI continue?  Will there be any sort of time limit on making the switch on the coins?  If that limit gets hit and there are still CAIx leftover does that mean the total supply will actually be LOWER than 1.6 million?