Bullhockey.
You can pretend things are still in the game in your head, but I prefer that it actually acknowledges me in this.
In that, there are no classes in Skyrim because there are no classes in Skyrim.
I do not get to pick from a list, I do not get to choose and name myself and there is no class description for my character.
So you can 'its still in there' till the cows come home, but no, it is not.
Skyrim has no classes.
It doesnt have any flying martian robots either, unless you want to 'pretend' they are there.
What is a mage? Is it seeing a little box on your character sheet that says "Class: Mage" or is it using magic and casting spells to solve problems?
What is a warrior? Is it seeing a little box on a character sheet that says "Class: Warrior" or is it wearing armor and using weapons to crush your enemies, seeing them driven before you, and hearing the lamentation of their women?
What is a thief? Is it hitting the TAB key, flipping to a page in the menu, and seeing something that says "Class: Thief", or is it using stealth and sneakiness to steal things, whether from behind locked doors or from their very pockets?
What is a battlemage? Is it looking at a page in the menu and seeing "Class: Battlemage", or is it wearing armor, wielding weapons and casting spells in battle?
What is an illusionist/thief? Is it looking at the character sheet and seeing "Class: Illusionist/thief" or whatever the equivalent in Oblivion was, or is it casting Illusion spells for misdirection, and casting Muffle and Invisibility so that you can sneak past guards and steal things?
Which is it?