As a user with many articles in my "For later"¹ and "In progress"² lists, I would like to see the "quality" of the source article so that I can prioritize which article I should translate first (e.g. by sorting the list according to the quality).
For this, I believe Special:ContentTranslation could expose the predictions of ORES' articlequality model for the source language on the line which shows "Enlgish > português", by changing it to e.g. "Enlgish (B-class) > português"
¹ https://pt.wikipedia.org/wiki/Especial:ContentTranslation#suggestions
² https://pt.wikipedia.org/wiki/Especial:ContentTranslation#draft