I don't have time to read through the entire thread and I haven't finished the book yet anyway, but I wanted to express my thoughts based on what I have read.
Firstly, am I the only one to think that the description of the Tzenkethi is close to that of the Vorlons without their enviro-suits? And how does that fit with the depiction of the Tzenkethi from Articles of the Federation?
Secondly, as to Sisko's behavior, from what I've read so far, it seems that the Prophets' words are coming true. He is of Bajor but will find no rest there.
On a third point, though I have been spoiled for the Romulan storyline at least in part, it will be interesting to see where that leads once I have finished reading the story.
Finally, I'd just like to add that although the story feels a little disjointed, I'm enjoying it.