If eCash is launched, Bitcoin users will attempt to recover their eCash—after performing a proper “coin split” to prevent replay attacks—in order to exchange it for real Bitcoin.

Until there is proof that this coin flip is risk-free, it is far better to do nothing at all to avoid the risk of losing your BTC and to wait for well-tested open-source tools to emerge.

The even safer option is to completely ignore the eCash chain and continue your activity on the Bitcoin network.