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Pretty much most of what was said by Rose, Pat, Jersey, and Mighty.

I, as well, can not see the two getting together.

They never even interacted in the movie anyway.

I could imagine, though, if Balto died, that Jenna would suffer of broken-heart and die.
(This was restated by me, but originally pointed out by Pat BTW.)

As has been stated several times already...

Jenna and Kaltag never interacted.

While they would look cute together, I highly doubt they're compatible. xD

A little update to what I said earlier:
As I said, they never interacted with each other in the movie and just look at them, I don't think they'd even make a good couple, personality-wise. Dogs of Steele's trio are, well, lets face it, fake cowards (fake because they immedietely change sited whenever Balto or Steele are in charge. Coward, because they blindly follow Steele and even though they hate him, they will never stand against him. It's especially noticed in Kaltag's and Nikki's behaviour). I don't think that Jenna would ever be impressed by Kaltag.
Also why do you say "remarry?" Thet were never mates before.