I realize plenty of people have already complained or reacted negatively to this idea of a more powerful PS4 in this thread, and I also understand that nothing's confirmed yet, but I really want to add my two cents on this. I prefer Consoles to PC gaming, and a big part of that is the "Console experience". By that, I mean buying a console, and knowing that any game I put in it will work, and will look and play exactly the same as it would on any other PS4. It's great not having to worry about whether my PS4 is strong enough to run a game, or whether it would be a compromised experience because it was designed for stronger hardware. It just works, and that's awesome.
A " PS4.5" could potentially jepordize all of that. If this turns out to be real, games will, at the very least, run at higher resolutions on the new PS4, and potentially have better performance as well. This isn't fair to the millions who already own PS4's (myself included), and more importantly, it's not the Console experience we expect. I mean, if I have to start worrying about whether my PS4 can run games at a decent resolution and framerate, and whether or not I'm getting the intended experience without making an upgrade, I may as well just get a PC. Console gaming is simple and easy, and I think it should stay that way. Having multiple versions of a console that run games differently is a terrible idea, and personally, I just don't think any good can come of it.
Also, if we're looking at this as a successor to the PS4, then that's equally terrible. Most console owners expect a generation to last at least 5 years, and we aren't even 3 years in yet. This all just really disappoints me to be honest, and I'm not really certain what the future of consoles will be now. It was looking bright up until now (at least for Sony), but now I'm really not so sure. At least, it doesn't seem to be going in a direction I'm really happy or comfortable with, but we'll see what happens, I guess.