The current tag airbus-a350 refers not to the old Airbus A350 project but to the current A350XWB model in operation since 2014.
I propose to rename the current tag to airbus-a350XWB and create a new one that refers to the previous project, airbus-a350.
Do we expect to get that many questions specifically about the initial A350 design?
It seems like airbus-a350 fits our current convention and would be clear enough that it refers to the production version. Questions about the initial design seem to be related enough to use the same tag.
There might be a case when there are multiple production versions of a plane, but we just have one boeing-737 tag and one airbus-a320 tag, with no A330 tag, let alone a separate neo tag.
I actually think changing the tag would be more likely to cause confusion. If someone comes here with a question and there are two different tags, they may pick airbus-a350 because that's the name they know, or they may be confused by the multiple tags to pick from.
To my knowledge, no examples of the original design were even built, and the design was abandoned almost a decade ago. The likelihood of us getting many (if any) questions on it is pretty low.
Furthermore, as fooot points out, we don't include variants in tag names. We don't have boeing-737-100, boeing-737-200, boeing-737-300, etc, or boeing-737-next-generation or boeing-737-max. We just have one boeing-737 tag. If the volume of questions ever warrants splitting them up, we can consider that then.
I don't see why the Airbus A350 should get special treatment in this matter.
