But if all sidequests were random or indeed, all quests were random, I couldn't handle it.
No, I'm pretty sure there will be main quests and subquests as in <img src="/ubbthreads/images/graemlins/div.gif" alt="" />. The random subquests are a bonus, more surprises on top of what we already know from the previous game.
I forgot what my source is tho... Maybe I just made it up? <img src="/ubbthreads/images/graemlins/think.gif" alt="" /> Today seems to be a memory-loss-problem day <img src="/ubbthreads/images/graemlins/ouch.gif" alt="" />