I do understand where you're coming from. But, I'm convinced that they'll bring out more than just a spec bump and FaceTime -- I hope, anyway.
I believe the current generation iPad's resolution will remain as it is, although, I don't want to believe that. However, I'm thinking a 7" iPad will come out with a 326 PPI display (1920x1280) in the near future (alongside the next refresh). That's a pretty huge resolution, coming it at 4x the pixels... but it'd take awesomeness to a whole new level.
Well I most certainly hope for more of a boost as well, but the ppi display quadrupling isn't really in the cards unless Apple wants to start doling out that $30 Billion surplus they have sitting around to subsidize the devices and sell them at a massive loss. And they have no reason to. Even if tablets with slightly better hardware come out, they won't have significantly better (if at all) resolution, and Apple still likely has the user experience advantage.
If a 7" iPad does come out (which I will state right now would surprise me, but isn't horribly unlikely) it could likely see the same resolution 1024x768. It would ensure app compatibility with the existing iPad. After that point, the only realistic option the 10" iPad has is to quadruple the ppi if they want to remain seamless app compatibility.
I would rather see Apple hold out on an iPad refresh until the Spring or Summer when a significant hardware bump would be possible to go along with the camera/RAM. And at that point, next year, if they find the hardware to put a 2048x1536 display in the iPad and maintain performance, I would fear for the battery life of the device.