Jim has something to do with those contracts, they do not happen in a void..
Yeah... That's
exactly my point.
My WAG is a multi-step process --
1. Back when he had no specific reason to ask them to vary the contractual-exclusivity duration, he took the default terms (or
close to them). Even for a best-selling author like Butcher, there's only so far he can negotiate away from a "standard" contract, before it begins costing him in other contractual terms. Without a backlog of uncollected shorts, he didn't ask for anything terribly unusual on this front.
2. Now -- mid-2022 -- there
is a backlog of Dresdenfile shorts -- stories published in multi-author (often "themed") anthologies. So he's eyeballing those, and the expiration of their original-publication exclusivity clauses, and it's looking to him like it's getting close to a new Dresden Files collection.
3. But, it needs a bit more. Another short, or two. Maybe collect all the microfictions, etc. But really, he wants to add a nice meaty piece, a reward to the Dresden fans who bought other anthologies (at least in part & maybe primarily) for his work, so it's not only buying the same content multiple times.
4. He may also have some target dates in mind with TOR, because of
their other publishing commitments &c.
5. And so he saw these dates lining up, but then had a burst of inspiration for this story & knocked it out... before it was needed.
6. With a large unpublished story in-hand, but the other shorts still contractually locked-up, he decided to release a "collector's edition" early, with its own exclusivity-clause that would line up with the other stories. Expensive enough and a limited edition, to the general fandom won't experience the "buy it twice" phenomenon.
Thus do I WAG.
Thus may it be.
Amen.