The fact that ESPN reported that the team wanted to give Ray an extra week before activating him says that he will be playing his week (this was reported on sat and sun last weekend)

And the fact that they have not put McClain on IR says that they are saving that spot for Ray and will wait till the latest to make the roster move which is sat at 4.

If Ray was not going to play this Sunday there is no point in keeping McClain on the roster and they would have IRd him already to open a spot up for someone else.