Re: What if Kes had stayed instead and...
I'd have had her get assimilated by the Borg, then later rescued and deassimilated...only the Borg would have left her with an icy, dominatrix-like personality, and certain "Borg implants" in the chest area if you catch my drift. She'd have ditched the name "Kes" and been known only by a Borg designation. The Doc would have pined for her, Kim would have had the hots but given up rather quickly, but in the end she'd have randomly been in a thing with Chakotay out of left field.
Man, it would have been awesome.
That is a very interesting idea but Jennifer Lien would have screwed it up because of her poor acting abilities.
Kes is the worst character ever in Star Trek.