I just finished the game tonight. I think you're right ... the narration was a guy reading off of cue (sp?) cards, and it does indeed look like a setup for a sequel. I too wanted to go back to the keep and perhaps be able to actually wear the garb of the Nine that Nasher gave me earlier when he said I was a new member of the Nine replacing Melia. I never was able to actually wear it
(( I think that could have still happened and left plenty of room for some sort of lead-in to a sequel ... "Deep in his heart, the newest member of the Nine knew that the Sword of Gith would bring other troubles to Neverwinter ... " Or something like that ... sigh.