Even if it's a tab targeting game, I think the devs can make both of these happen...well, kinda.

Aiming with a crosshair:

I don't know how many of you actually played/tried Champions Online. It's a tab targeting MMO, but in the control options there's this thing called "Shooter controls". Once you enable it the cursor disappears, and you you get a crosshair with permanent mouse-look instead (so when you move the mouse, your character and the camera automatically turn that way...like in a shooter game). Then when you hover the crosshair over a monster, the game targets it for you. It's still a targeting mechanism, but at least it would give you the illusion of the classical TES combat. Having this as an optional UI thing wouldn't hurt anybody really. What I really want to know is: Can you use your skills without having valid target, like in GW2? If you can, then this could work out very well IMO.

FPS View:

Just do what the EQ games and Vanguard did. It's called "First Person rendering". Basically when you zoom-in to FP view, your character doesn't disappear and you don't become a floating invisible head like in most MMOS. There's also a skyrim mod called "Real First Person Mod" that uses this method, you can youtube it. Instead of the standard Skyrim FP view, it's your third-person character model zoomed-in to FPV.

I understand when the devs say first-person isn't for MMOS. But neither of the 2 things I mentioned require any sort of heavy programming. They're just UI and camera "tricks"...that's all. It's far from Skyrim-like combat, but at least it's something.

The optional shooter mode works really well in Cryptic's games (I'm thinking of STO here). If ZOS can do that and people are happy with it, I'd say go for it.