For me as a PS4 owner, I probably won't get the "PS4 Neo." The problem I have with both systems is there are relatively few developers that would be able to develop for the systems properly. Indie/middle class developers simply can't.
With that being said, Sony is likely to do a console exclusive that makes the "PS4 Neo" worth getting. Microsoft may be able to do so as well, provided it's not Halo, Gears of War or Forza IMO.
I was actually on board with getting the Xbox One S until "Project Scorpio" was revealed. Microsoft to me managed to undermine their own efforts -- Rise of the Tomb Raider didn't pay off, Halo 5 isn't selling as well, Forza is losing traction (pun intended) and I'm not too jazzed about Gears of War 4. Scalebound is too far away. Their brilliant idea next will be "Let's buy Naughty Dog and have them make something like Uncharted 4 or The Last Of Us on our system!" rather than look at their current first party developers and make a brand new, inventive IP. That stealth demo that The Coalition did when they were Black Task had me hoping for that.
Where Sony is winning is the wide variety of games on there -- you can play Disgaea 5 and Grand Kingdom and Atelier Sophie on the same system as you can play Star Wars Battlefront, Uncharted 4, and Destiny and PS2 remasters like GTA III and indie games like Broken Sword 5.
