I remember the last year the dev was communicating.  He barely said anything to the team/public and yet was achieving things.  He did trade a few emails with me.  The last email I sent him was polite but I said I found it hard to invest in a coin only on one exchange.  He didn't reply to that.  That was a little over a year ago, I believe.  I'm saying this to say he may intend to be active, but he's never been a big communicator in the last few years.