Why are you people picking Kim? Until Kim shows improved mental strength there is no reason to believe she will all of a sudden come back and start beating Justine. Justine pretty much had her number before they were injured and until Kim shows she has countered that you would have to favor Justine.
I think it also depends on when they meet the first time.
Let's say they meet in the first tournament where Justine plays, and in the first round (which is possible since they both dropped in the rankings). In that case I'd say Kim, since she's already got match rythm, and Justine hasn't.
But on the other hand, it could last half a year before they meet (opposite halves of the draw, either or both of them not coming through to the final) - in that case I wouldn't have a clue, because I've no idea where they will stand at that point...
How can anyone tell? Why picking Kim? Why Justine?
1) we don't know when they'll meet.. they might even play a whole year without meeting eachother
2) we have no idea how both will be playing, if they'll ever get back to their old level.
3) you don't know where they'll meet, on what surface, in what circumstances.
Before both got injured I often thought Kim would win whenever they met before the final. When they meet in a final I thought Justine had more chances. We'll see if this still will be the case...