Side-eyeing you guys so hard now. It has been thus far established that she can only raise humans as forsaken (explained by the fact that they are descendants of the vrykul) and can resurrect Sylvanas as per their pact. the worgen curse immunizes humans -better said, it's just a different ailment- that's why they seek it.
Hence the question, you guys; What does Lor'Themar words mean? did she managed to hack the Valkyries to resurrect blood elves -a side effect from her own valkyr powered ressurrection- or is it just about more ordinary uses for body parts?