What was previously "Exotic Quest: Divinity" has now been replaced by "Exotic Quest: Xenophage". The image is also of the new bug lmg exotic, which we now know the name of. This makes me think Divinity will be the raid exotic after all, and that the quest will be available either at launch or when the raid releases.
Yea it looks like the wrong image was used in the TWAB and I'm updating it now with the correct version. Thanks for pointing it out!