Dragon Age: Inquisition - Which Companions Will Return?

Judging by their appearances in the first two games, the romance options that we had with them, and a couple of other variables, the folks at Unigamesity have rounded up a list of all previous Dragon Age companions that contains varying percentages on the likelihood of each one's return appearance in Dragon Age: Inquisition. A few examples:
9. Leliana (DA1, Bard):

Leliana is a bard with a lot of faith in the lord. At the end of DA2, it was revealed that Cassandra and Leliana were looking for the great heroes of Thedas, in order to put an end to the mage-templar war. Cassandra will surely return, it has been announced by Bioware. Leliana may return, even though nothing has been announced so far, things are quite bright for her.

Probability to Return: 1/2 (APG) + 2/2 (RO) + 2/2 (RBS) = 83% - Leliana Will Most Likely Return

10. Morrigan (DA1, Shapeshifter):

Morrigan is the devil and the saint, the fire and the water. this female mage has everything with her and even though there was no sign of her during DA2, it's confirmed that she'll be back in Inquisition and possibly with a great role.

Probability to Return: 1/2 (APG) + 2/2 (RO) + 2/2 (RBS) + 1 (Announced) = 100% Morrigan Will Return

11. Merrill (DA2, Mage):

This cute mage had a terrible experience with demons and blood magic but Hawk managed to save her in time. Merrill may be stubborn and naïve but she will always fight for her own. I'm not sure if BioWare will bring her back but her chances are quite positive.

Probability to Return: 1/2 (APG) + 2/2 (RO) + 1/2 (RBS) = 66% - Merrill May Return