Although the central bad guy is her nephew Rennen, Domina and her family-relatives of the Death Star general who perceived the Rebellion as a threat in the briefing room scene-were recurring antagonists in the original Marvel series, which had the Tagges basically being an elite galactic family. I wouldn't be surprised if she showed up in some later issues.

This isn't the first time old Marvel canon has been reintroduced by Disney-the Cloud Riders from SOLO were inspired by a group in the comics; and the bounty hunter Valance has also been reintroduced. Also, the Darth Vader comics revealed that General Tagge did not die on the Death Star (He's not really seen late in the film like Motti and Tarkin are) and that he was the commander of the Executor before Vader. Vader kills him at the end of the series.