I'd rather Lorna not just be a carbon copy of Magneto where his views on everything are hers as if she can't disagree with him on anything...I think that it's more that Marvel doesn't respect Alex or Lorna that's the problem, and so far we don't know if Lorna will be challenging NorthStar or not, just as long as she doesn't bring up the fact that she's Magneto's daughter if/when she does it...I don't see Lorna as being crazy now and they'll probably just ignore Rachel's recent troubles sadly...some of Lorna's problems could be inherited from Magneto as it would fit with Wanda and Pietro having similar problems over the years and it's not all their fault...
The Gifted Lorna was a totally different reality and the 616 Lorna wouldn't have any reason to be to terribly much like her as the situation for mutants in the 616 verse is completely different...