on the plus side network seems to be working a bit better today.
I don't believe that developer will return. Missing even a day, when your coin has problems is a long time in cryptoworld. If we assume that he is silent for a reason (buy cheap coins while people are selling at loss), then we are talking about pure greed. He had (and still have) the chance to buy 10-20% of the entire supply for peanuts.
I'd rather the dev was greedy than have bailed because he lacked the ability to dev a coin.