Kill cams for magic and ranged combat, enhanced underwater visuals, mounted combat and kinect shouts have been introduced through updates, but how do you think Bethesda is going to implement the others? Like seasonal foliage or follower commands, like training and setting favourites. Do you think they'll be added into DLCs or through new updates?
Will they even be implemented?

Whatever Bethesda decides to do, I just hope they integrated them correctly, unlike the spears that function as arrows and the werebear form of lycanthropy that cannot be contracted, in the Dragonborn DLC.

Eh, what else is there left to be implemented?

Ooh! I know! Instead of having crossbows in the first place, they'll sneak them into a DLC and introduce the weapons as if they were a form of alien technology. Because, you know, only a skeleton crew of alleged vampire hunters would realistically ever have the need for such things.

And I can't think of a better way to introduce a spear concept than to have it serve as an arrow! Oh, that was so clever.

Hmm, I dunno what could be next: throwing weapons? Perhaps a band of ninjas just passing through could spread the word among all the smiths in the land. (Wait, it's a knife, but you can throw it?!? Huh?!?)

I think so. One at a time though. Little features in the future DLC.