I don't think so. All the other stories are about the Millers (the brothers, and even the parents)
Yes, they do. But it was only announced in March this year, so who knows how long it will take until it will ne released, since there are other novels and side stories for existing novels planned.
There is "Kiss me Liar", and of those are 5 more to come, that series is about Angel and his children.
Then you have "Kiss the stranger", "Kiss the scumbag" and "Kiss my grits" same universe but not part of the two main series, but some chracter make cameos there. And in the extras of KML the daughter of the Kiss the scumbag pairing is a friends of Spence.
And two of the ...if you can (Miller) novels are still missing.
Seth is so damn fine. Also does Isaac and Henry get a separate story?