My list (which is not your list, although if it is, we are probably right)
The lore is not used enough in gameplay. Liches are common and weak in oblivion. There arent any of the werecreatures described , there arent lots of different types of khajit or argonians
Acrobatics is [censored]. Taking it out isnt helping it much. It should be made to allow mirrors edge type stuff.
Gameworld and cities should have always been bigger(dagerfall does not count)
That some aspects of realism should come in.
Combat could always be better and there are never enough types of weapon (morrowind does not count because all the weapons acted the same)
that vilain creation is shallow and i could never emphasize with any of them