Sorry, I gotta jump in here.  The ONLY change peme is making to the "new" wallet is to modify the block rewards from random to average.  I'm all for caution here but it was a single line change to the existing code base and he started it months ago.  Now, we are to the point that, in aprox. 40 days we will enter the fixed block reward of 29531 MOON meaning the change will be mute.  Even if the "new" wallet were to be released today it is unlikely the hard fork would occur before the next reward change which means it would have almost 0 impact for anyone and create a tremendous amount of issues for everyone.

In addition, the price of MOON is now ~25K/0.01USD which would give the "cheaters" a chance to only mine 3 and 4 penny blocks instead of the 1 and 2 penny blocks which will be available in the next 0-100K reward blocks.  At this point, their total advantage if they got lucky enough to mine all of the big reward blocks from here until the fixed rewards, would be around $500 USD total. 

At this point I can't imagine why a new wallet would be released or why anyone is still waiting for it.  In just over a month MOON enters its final phase and the exchange on which it has seen the most activity has effectively shut it down.  That's not a death sentence in and of itself but it certainly is a bigger issue then some miner spending 2 cents in electricity to snag 4 cents worth of coin that they now can't even reliably sell.