I was watching an interview with Sven and he mentioned that they are having an onboarding problem to help new plays play the game/learn their class etc.
Why not have a "dream" or flashback sequence where you recollect your past or ambitions.
This mini sequence could play right after the "who do you dream of at night" sequence and allows you to test out what your character will be like at higher levels and if that class and subclass choice is for your playstyle rather than rerolling half way in the game.
You could also use this to teach certain aspects of the game as well hence fixing the onboarding problem as well as giving a unique class / subclass flavour that this game currently desperately needs. Besides visuals and a couple dialog choices there really isnt much to make your subclass / class feel unique. This class halls in WoW.
OR maybe have it after you pick your patron for warlocks, or pick your god etc. So after level 2/3?
Have it show a unique (but doesnt have to be huge) area for each class/patron/sub-class
>A rogue in a training dojo with other rogues and maybe you get to control the master who has all the high level skills unlocked and maybe an assassination attempt it made so you fight back.
>For warlock Great old one you are teleported to this nether realm where you see the eldlich being in front of you. It begins to promise you great power and you can test out your high level skills there. If you refuse it begins torturing you until you submit to its will and then it lets you test your high level skills.
>Maybe for bards you are in a concert but you wake up and it was a dream and you want to become that good in the future.
>for demon paatron warlocks youre in a unique castle in the hells getting a tour by a high level demon etc
each subclass would have its own unique flavour to it and at the same time youd be solving the onboarding problem