To run the core network EOS is only seven days, then the entire project will leave the Ethereum network.
This means that there is very little time to investors and owners of the EOS token has been able to register them in the new network and thus save their investments.
According to eosauthority.com a lot of owners of the EOS token is still not registered their tokens.
However, the exact number of users that must complete the registration process unknown. Large exchanges and cryptocurrency exchanges, including Bitfinex, Binance, KuCoin and others, announced that they will support the transition.
In the section “frequently asked questions” in the EOS GitHub the development team claims that it is possible to recover the unregistered tokens after the launch of the core network. In particular it notes that “this process is extremely experimental, but it is work.”