No offense, and Im glad youre thinking about how to improve this coin, but what you have proposed is not innovation, its jumping on the bandwagon.  Every other coin has forked to PoS and I see no real marginal value in that. 

We all bought NYC knowing it had a huge coin volume.  I expected that to lead to higher liquidity and broader adoption.  But the problem is, we have no marketplace, no pipes, no merchant adoption, drawing on that liquidity.  So the coin has stagnated.  But the power of the name keeps the network alive very successfully.

At the very least, NYC occupies a piece of valuable real estate.  If we abandon the network, someone else will scoop up the coins at bargain bin prices (present prices) and then bide their time until a major new crypto tool emerges that adds real marginal value to whatever coin adopts it.  Then there will be a relaunch.  Then shoot me...

The dev is right that merchant adoption and community enthusiasm are our rate limiting variables now.  Changing the coin specs will just split up the network and decrease the number of full nodes on the other side of the fork, because not everyone will participate in the changeover.

What is this coin's strongest attribute?  The name.  Period.  All that name needs to grow huge is a reliable reputation and coin velocity, that is, a strong pulse in its merchant-related activity.

Our day will come.  We will rebuild stronger when the right opportunity arrives.  PoS isnt that.  PoS/poW switching will only spark volatility and encourage PnD cycles.

People need a way to use NYC.  Anything is valuable at this point.  Find any merchant anywhere to at least show support for the concept of NewYorkcoin and the pulse of the network will gain a little more velocity.  The network effect would take care of scaling up to see real growth.  Everyone should be focusing on how to encourage people to acquire and use NYC.  PoS just takes care of the acquiring.  We need use.  NYC needs to flow in order to have life and grow.