differentiating the 2 version as Goliath N18 and Goliath N20 (or as MI2sjw suggested Goliath Underhive and Goliath House)
As a librarian, I would not recommend the "Goliath Underhive" and "Goliath House" for two reasons, one minor, one major.
Minor: Labeling the new set of rules the "House" rule set is not really intuitive. It implies that they are, well,
house rules, rather than an official edition.
Major: "Underhive" is actually the official edition name for N03. And for N17. And for N18. And for N20. As a librarian, I will say that doing that was madness on the part of the publisher. Doing that would prove madness on your part as well.
I would actually recommend instead changing the tag [if that can be done] for ORB to "N95" and the tag for the 2003 edition to "N03." Since the "community edition" is a step beyond that one but not an official SG edition, if I understand correctly, THAT one could still be "NCE," to distinguish it from the GW-published editions.
N17, N18, and the N20 to follow. That keeps the editions clear, DESPITE the company having maned them all identically, and not numbered them. N20,because N18 is what was published in 2018 and 2019, so N20 should be what is published in 2020 and 2021 [and 2022?]. That edition launches with House of Chains.
The campaign structure doesn't care about rulesets, all it knows are the gangs attached to it and the territories etc. So mixing gangs from different rulesets is not an issue.
Phew!
I think we definitely need a new N20 (or N21) forum tag though.
For differentiation in the tools, I too like naming the new gang "House of..." while also renaming the current versions "Underhive Goliath" for example. That way they sort properly and people can assume Underhive gangs are less strongly linked to their House and so do not get all the new rules.
Yes, the tag will help. It won't help the old hands as much as it will help newcomers, sure, but using non-intuitive terms works as a gatekeeping method to prevent new folks from understanding enough to ask good questions and get good answers. Keeping things as simple as possible is good. GW didn't number their editions, and they named four editions the exact same thing. That was
their bad choice. We don't need to go that route. Again, I don't know whether or how the tags already in use can be universally changed, or if that would require editing each thread and vault submission by hand. If possible, I would recommend changing [ORB] to [N95], and the Specialist Games "Underhive" edition to [N03], leaving the community edition as [NCE] to distinguish it, and then continuing with [N17], [N18], and [N20]. And hopefully not [N22]. No promises.