Honestly, I'm totally okay with the new transformation. I knew something else would happen to Blackjack after the upgrades in chap 53, while drafting notes and sketches of Blackjack's evolution. It only seemed right and in the end, it happened. Even if the metal skin might be a bit kitch, the wings are super voracious in terms of power draining, and her other abilities haven't been altered. Also, it was a rushed decision, she had to stop Lighthooves, at all costs. It's not like she saw the transformation pod and though "hmm, might be a good idea to add wings". No, it was rushed, and reckless. Exactly like all of her decisions.About the future, whether she dies or not, if Somber manages to write an epic ending, I'll have no problem with it.