Obviously the creative process and then making a profit from these games is the priority for both HB and Sidhe and their producers, publishers etc. Aside from that though, there appears to be quite a friendly and respectful competition between both developers which can't be a bad thing either.
It's the kind of thing that if it did somehow happen it probably wouldn't be for a while, but what I've wondered is if in the future we could see both developers work together?
Hypothetically, with one product and two teams, you obviously share the workload, possibly halve the costs, get new and progressive ideas from the successful aspects of both teams, halve licensing costs, combine assets and potentially dilute financial risk.
In the marketplace you shift the focus to one product, with more people buying that one ***le than a certain percentage buying one or other. It's possible that the gross profit percentage for each developer would increase possibly significantly.
I guess whether something like this (or aspects of it) would ever work is something that will be learned in the aftermath of the release of the two games this year when the sales figures tell the story, but I think it's an interesting thought.