You are right. I have no idea when they might change it. It probably won’t have much affect on the rankings - 1/2 of the 15% selectivity weighting and there is usually some relationship between writing scores and (at least) CR.</p>
<p>They cannot use it because a large number of colleges, probably still the majority, ignore the writing section for purpose of admission. For rankings they have to compare the things that colleges as a group use for admission.</p>