I'm not going to pretend I know anything about copyright law, but to me, it makes sense that Zenimax is going to continue on with this case, since one of the central points of all of this is not only to stop Mojang from applying for the Scrolls trademark, but to protect their own trademark, that being The Elder Scrolls. Couldn't this set a harmful precedent for Zenimax if they just let this one slide and allow Mojang to call their game "Scrolls: whateverwhatever". I mean, speaking from a strictly logical point of view, there is essentially no difference between the title "Scrolls" and "Scrolls: etcetc". Scrolls is still at the forefront of the title, and as a result it's going to stand out as the title's most distinguishable facet.
What's to stop a future developer from naming their title "The something Scrolls", and then citing the Mojang precedent as justification for its relative closeness to Zenimax's "Elder Scrolls"?. Sure, Zenimax would still own the trademark, but since a precedent had already been established that Zenimax is relatively lenient on the enforcement of its trademark, a judge may act in a more lenient fashion towards any future developers wanting to adopt a title which was similar to "The Elder Scrolls". I don't think "Oh, well, this is different" would be a very effective legal defense on the part of Zenimax should something like this occur.
Which leads to my main point - people, calm the fuck down. This is a complex legal issue, and it is simply another case of lawyers doing the job for which they are fucking paid. The fact that people are so blind to all of this and are so ostensibly eager to jump on their anti-corporate bandwagons is laughable, and it conflicts so strikingly with the rational, level-headed mindset I'm sure many people on this website would like to believe they possess.