I have done some more research.

"Emirates" (what is now the Emirates Group) was established by Emiri Decree No.2 in 1985. It is the only actual legal entity that exists.

Emirates airline (sic) is simply an operating division of the Emirates Group, on a similar footing to Skywards, or SkyCargo, or Emirates Flight Catering, or DNATA or other divisions.

Skywards therefore has no relationship with Emirates airline (sic) other than common parentage of the Emirates Group (aka "Emirates").

Therefore, I would suggest that "Emirates Skywards" would be the most appropriate title for the forum. This would represent Skywards correctly as an operating division of the Emirates Group (aka "Emirates"). Under any circumstances though, "Emirates Airlines Skywards" should not continue to be used. "Emirates Airlines" does not exist, neither as a legal nor artificial entity. "Emirates airline" (sic) would be the closest approximation, but Emirates airline (sic) is a separate operating division than Skywards.