User blog comment:DuelMaster93/Crunchyroll to Simulcast Anime/@comment-25485316-20131101011549/@comment-2125188-20131101045454

we can't make that assumption without any evidence

when attack on titan was simulcast by both funimation & crunchyroll at the same time, the subs were different. The episode titles, translations, fonts etc. weren't the same.

The only anime to stream on both sites before are Attack on Titan & Heaven's Lost Property (which isn't on crunchyroll anymore so no comparison can be made)

So based on that we an only assume they will be different subs. And as far as I know crunchyroll has always done subbing by themselves