Well,I want to say something about "play this game than" comments...
What is the aspect of TES that makes it better than other games?
-Does is have the BEST combat? Not really.
-Best role-play elements? Uhmmm...
-Best story? NO.
-Best design? (Morrowind could qualify for this though)
-Best music?Best AI?Best graphics?Best game engine?
For me,it's none of those above.It's freedom,and being able to be able to do a lot of things at the same time.(Undoubtly supported by mods)
It's not a super combat game.It's not role-play at its summit.But I can fight when I want,I can sit at a bar or enjoy a scenery when I want,I wonder off to make new discoveries,while choosing my path,profession and style.For me,what makes TES one of my favourite games is that it's many games in one.And the "freedom" everybody loves about TES is that IMO.
Freedom really isn't an answer, there are a lot of games that have "freedom". If anything what made The Elder Scrolls good was a mixture of things, the "challenge" however is an amazing factor of that, if a game has no challenge then it's pointless, if a game has too much challenge then it's frustrating. Instead we are talking about parkour running around cities, what losing guards? or can the guards do it too? I don't want to see guards running around climbing over stuff that in reality would probably break or move if you tried to climb on to it. It doesn't in my opinion fit The Elder Scrolls style well at all.... more so, it is unrealistic as I have said, we have laws of physics and such limiations in games can give you a sort of familiarity, in my opinion the only games you'd get familiarity to are Mirror's Edge and Assassin's creed, not life.
You can't do these things in real life without a certain degree of set-up (I ain't setting my walls up so you can run over them when you steal from me) that to me would be too much of a shift, if you want to go that way, call the game, Blantant Assassin Creed's clone, not that I think the game is going that far that way, but a few features and announcements so far have left me thinking that things already have been influenced more then they should be by Assassin's Creed and to be that's a seperate game that suits it's style and it isn't TES's style. To finish, I think there is actually more to the limitations then freedom, being limited adds challenge, being free just makes things too easy, it kills a game. Freedom has to be balanced, as does the engine to ensure a unique play style.