1. Attributes and character stats in general is a remnant from Pen and Paper RPGs. They needed some interesting mechanism to determine the outcome of battle with the help of dice (it was also a tool to diversify characters).
A lot of the older computer RPGs not only used mechanisms similar to PnP-RPGs, but actually copied PnP-systems. Baldur's Gate 2 used a pretty much perfect copy of a version of the DnD system, right?
The whole idea of real time battle that TES uses in the first place, shows that there are other ways of simulating battles than using a turn based solution. Why not take the dive altogether and leave the PnP-roots completely? As long as the system is complicated enough to force me to make strategic decisions to move forward, I really don' care about the details.
2. Logically, there is absolutely no need to keep track of these numbers given that you have skills. What is going to determine how much stuff I can carry? Before: enter the number for the strength attribute into a mathematical function to calculate an encumbrance.
Now: Enter the level for skills that rely on strength into a mathematical function to calculate an encumbrance. Instead of raising one-handed weapons by ten points, calculate a new number for the strength attribute and then a new encumbrance, just go directly from raising one-handed weapons to encumbrance (and any thing else that may rely on strength). Since the functions have to be 1-1, there is absolutely no structure lost in removing this step.
The same goes for every single skill, since all of the skills are attached to an attribute.
Also, you could have an interdependence of skills, giving rise to a more complex system than before (yeah, I know, low odds of that happening!).
3. Races can be as diverse as before. They can be given a bonus for a few skills (so that they level some skills faster), there could be perks unique to a race (although, I can certainly see a danger in that idea). I remember reading that there is no difference between races other than cosmetic, but I really hope that it will change before release.
I hope I made sense, English is not my native language. =/