I don’t know yet, but do know that Claremont was definitely going somewhere with her connection to Zaladane.
However, while Lorna possibly does have ties with Magneto, what with Zaladane’s ability to absorb Magneto’s powers in Uncanny X-Men #275 I don’t think the connection is as obvious as Austen made it out to be.
Had Claremont been allowed to play out his projected Neo epic, he might finally have revealed the mystery behind Zaladane’s claim that she is Lorna Dane’s sister!
Moira MacTaggart later claimed that for the power-switching procedure to work (cf. Uncanny X-Men #249-50), Zala and Lorna must have highly-related genetic structures.
However, while both have the same surname, sadly Lorna was adopted as a child and Dane was the name of her adoptive parents, so there must be more to it!
This is where I would posit the Neo as providing the “final solution.”
Readers of Claremont’s stories with these characters will recall power-switching was an ability attributed to leaders of their Warclan.
Did the fact that Zala initially showed up in the Savage Land suggest that Zala was once a chieftain of one such Warclan of the Neo, or at least her parents were, and both she and Lorna possessed the same ability due to this heritage?
As for how Lorna ended up with the Danes, perhaps she was originally a Neo child that they adopted.
From Uncanny X-Men #52 we know that Lorna was adopted by her aunt, so had her and Zala’s uncle and aunt earlier taken up permanent residence in our dimension, and upon the death of Lorna and Zala’s parents through still unknown circumstances, Lorna ended up in their care while Zala ended up in the Savage Land to fend for herself, perhaps explaining the bitterness she holds towards Lorna, a reversal of the origin of Kevin Plunder and his brother, Parnival.
I will admit that I’m not particularly fond of the idea of Magnus as Lorna’s father, but if the sisters are of Neo origin, it might explain why it was the Savage Land of all locations that the Master of Magnetism chose to build his base of operations.
It might make further sense as to why, upon arriving at their fortress, Magneto commands the Neo to serve in his army, and why Domina submits to his demands.
Did Magneto perhaps set up base in the Savage Land, knowing the dimensional walls there were thin, and clues had led him to believe that Magda had fled to their dimension after giving birth to Wanda and Pietro?
Or was Zaladane perhaps a clone of Lorna Dane and both were created in a lab by none other than Mister Sinister in his early attempts to create a clone of Jean Grey before he created Madelyne Pryor?
Zaladane, for some reason, did not have any mutant genes, but Lorna Dane did possess the mutant genes which were also responsible for her green hair.
While Zaladane claims to be a Mutate she could have perpetuated this lie to serve her purpose of gaining leadership over the Savage Land Mutates.
Did Sinister engineer Lorna Dane to be adopted, like he did with Alex Summers? How interesting that the pair became a couple considering how their early fates were so similar.
What makes this even more likely is the suggestion that Lorna Dane’s parents were killed in a plane crash.
Recall in Classic X-Men #42 Mr. Sinister orchestrated a similar fate for Rick and Trish Bogart, the couple pegged to adopt young Scott Summers, their bodies lying in the wreck of the plane, undiscovered, somewhere in the mountains.