My suggestion is to hold until March 20's and then lock in your profits and speculate the rest however if anyone believes in this coin succeeding beyond a year is greatly mistaken as there will be more sensible Forks and a flood of new cryptos with the same philosophy will be coming soon. I wouldn't worry about dev cashing out as it will be impossible for him to do so without killing this cryptos value.
I agree ... there is no point in selling right now before March 25th. I don't see how prices are going to drop as long as 99% of coins are locked till March 25th (that is, as long there is no other scam involved).