I personally believe we will see an iPad mini 2 in the spring. The reason is that Apple wants to move the current mini down to a $279 price point which will put it in the competitive range of the Nexus 7 and the Kindle Fire.
I could see Apple bumping memory to 32GB, 62GB and 128GB in 9.7" iPad as a way to justify the price difference. They could also go to 2GB of RAM and start offering a OS X "lite" version on the full-size iPad which would be an alternative to Microsoft's Surface tablet which is supposed to run Windows 8.
I see Apple moving the full-size iPad into position to be a true laptop replacement and the iPad mini becoming the tablet standard.
At the same time, look for the MacBooks to become touch screen enabled.
Sadly, I can't agree with even one of your predictions.
They just upgraded the iPad 4, they aren't going to upgrade it again for a year. And they are *not* going to put OS X "lite" on a tablet, not in the next year (if ever). They may in the future do more to merge iOS and OS X, but it wouldn't be till something like an OS XI, which would be a *huge* change and a major revision to both OSes.
They are simply not going to reduce the price of the mini, and the reason is that they've had NO problems selling them at the current price, lowering the price isn't going to do anything but reduce their profit margins, and that's not Apple.
There was a purpose to their upgrading the iPad to the 4, but there would have been no reason to upgrade it if an upgrade was imminent - launching a new product is expensive, which is why Apple tries to limit the number of new product launches. So, if no upgrade to the iPad (4) is forthcoming in the Spring, why in the world would we expect them to release a new mini with the same resolution as it's larger brother? We'd then see a mini and iPad 4 with the same resolution, which means they'd have to realise reduced margins on the mini or raise the price of the mini, which then you'd see the mini and iPad 4 at essentially the same prices, with similar functionality and features and specs, but in different form factors - that makes absolutely no sense.
What they will do is upgrade just before the holidays next year, along with the iPhone, iPod Touch and both iPads. Maybe by then they'll figure out how to put a retina display in the mini, keep it's price point and battery life and size the same. As for the full sized iPad, it'll have to have as big a jump as the mini, but to what I'm not sure - exciting times ahead!