These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
What Could Have Been: Sanderson ended up changing several things from his original conception of the novel. Raoden was originally supposed to have been in Elantris for awhile, rather than a newcomer; he was originally supposed to have a younger brother "the Mad Prince" who would act as a supporting villain, but was cut for being largely extraneous to the novel (though Sanderson admitted to liking the character)- Telrii ended up taking over the meatier portions of his role; Hrathen was originally supposed to be a Dula who converted to Shu-Dereth and betrayed his own people to the Fjordell- this was changed because it undermined the ending of Hrathen's arc where the very Fjordell Hrathen turns against his people and his prophet-king to do what's right.