No not really.. I mean not all the points. You have some points that can't
As mentioned, if you look at teardown images of the Surface Pro 1 and 2, there is no room for an additional USB port., unless they change the kick-stand system. 512GB SSD's, the good ones that Microsoft uses, which is part of the key component that makes thing extra fast in this device, are expensive. Now for sure, price is dropping, so it will be a bit cheaper, the next Surface Pro (assuming they don't do anything that increases cost).
Pen holder, while there is no room inside, but I am going with that things can always be brought closer (increasing the cost of the device), to have space where you have nothing side (no battery, no circuit board, no ports connector in the way. The pen is too thick. Remember, it has a button. Unless you want to lose that button to make it fit. AND in addition, you want it thinner... that means that really, the pen wont' fit at all, unless you want a thin pen like the Nintendo DS ones, which I doubt you want.
As for the track pad. Well the reason why the current one doesn't have buttons, is that if you move your finger on the button area, notice how the mouse is being tracked. It was done to maximize surface area. So, to make what you want, they can either change to a 16:10 display, which would make the device taller, which would allow physical buttons, or use that extra space to make the touchpad bigger which is also needed.
One thing I am surprised no one wished for, but how about more durable keys that doesn't get wear out by the table surface when the device is moved arround, let alone the screen. My keyboard is not even a month old, and the corner of some keys ware out. I already replaceable it, thinking it was a manufacture error, but nope, apparently it's normal. Shame for 130$.