...it's just been done far too often by now. It's already too cheap and hackneyed a plot device to be redeemable.
		
		
	 
 
When watching 
What You Leave Behind, I remember shedding a few tears during the scene where Jake is staring out the window at the end. I shed them again when I read the novelization.
 
Now, I can appreciate why Avery Brooks wanted Sisko to return and I enjoyed 
Unity immensely, but... not only bringing Sisko back, but 
when he was brought back stretched it a bit for me.
 
In the 
Avatar books and the 
Mission Gamma series, I liked Elias Vaughn as a character and I liked where the authors were taking Kira and Ezri, but I think those characters were diminished a little bit with Sisko's return and their respective potential character arcs were waylaid.
 
Moving this same train of thought to 
Voyager, I think some of Chakotay's best character development is in 
Full Circle and 
Unworthy. I particularly like the Chakotay-Cambridge dynamic. If Janeway returned in even the most miniscule role, her presence would be so commanding (meaning predominate, not 'being in command' - no pun intended) that dynamic would be affected, as, I would think, the entire command structure of the DQ fleet. The original 
Voyager characters are dealing with her loss, becoming stronger, more decisive, and believing in themselves more without her.
 
Chakotay would be relegated to sharing his opinions but Janeway doing what she wants to do anyway and to him pining after Janeway (because somehow in the new status quo, she wouldn't see it appropriate for them to continue with their relationship.) Is that really what we want?