So it has been confirmed there never was cut content for her in Act III. They did an interview with IGN (and Samantha Béart retweeted it).
Which honestly makes it kind of sad that we have all these breadcrumbs. There are just so many obvious loose ends, its weird. It might just be that it was never fully fleshed out, due to the time crunch at the end, and she was a late addition, but who knows at this point.
thats either really lazy on larians end or really cruel to lead the pc along the whole of act 3 with enriched iron, gondians and a possible cure at the steel foundry only to get shafted, ignored, and left with a pile of useless iron outside of asking damon to make some stuff. It just makes 0 sense to go out of their way to create this enriched iron then just throw it away and give 0 chance to help her in act 3. Those are some annoying plot holes in act 3 that does taint the last act i hope we get something in a dlc for karlach.
