These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Da Capo
Die for Our Ship: There are quite a few vocal people who wish Nemu would just die so Kotori can move in.
And then there's the alternate-universe OVA in which Kotori wins... in which it is heavily implied that Nemu did die, before the events of the OVA.
Supposedly in the game, that's only in the normal end. In the good end, Nemu shows up at the last minute to attend Junichi's and Kotori's wedding.
And the game Da Capo Innocent Finale, which is what the OVA was based off of, was released in English on November 30, 2010. The Kotori fans are winning the jackpot here.
It doesn't end there. A compilation of Kotori's stories, from the original all the way to I.F., was released under the name of "Kotori Love Ex P". An English version is slated for sometime this Spring.