For the iPad to replace Wacom Cintiq, it would have to have pressure sensitivity and better pens. Both of which Apple has patents for.
The iPad already has apps that require the use of special pens, and they are not the same as styluses and they have nothing to do with what Jobs was complaining about.
Jobs' complaint about styluses was that they were the primary and only way you interacted with the screen.
For artists, pressure sensitive pens are far, far superior to a finger.
I wonder if Apple is thinking of the iPad Pro as a merchant Point Of Sale device as well... It could accept NFC payments without the use of an add-on device.
This device, it's screen size, additional battery, other power features, will allow it to be used in ways the current iPad is not, and as such, should not be thought to be too heavy and bulky to carry around, should not be thought of using it like you currently do.
I hope they finally add mouse support along side keyboard support. When an iPad is in a vertical stand and not your hands, it is a pain to reach out and touch the screen. Jobs even said that, which is why I'm surprised mouse support isn't yet available.
If you're using a keyboard, we should have the option for a mouse. I hate trying to move the curser between two letters, it is slow and tedious and even causes the iPad to move. If you rather use your finger, that would be your choice, but to not give us a choice is dumb.