Its been four years and Lorna has not referred to even Pietro and Wanda in any way and vice versa. Hell, as far as we know she doesn't even know about the Axis retcon. If they can't get around to filling in the popular core family post-retcon relationships I am not giving any odds they get to the extended ones.
Still I have little doubt the retcon will come down in the next decade or two short of the MCU post X-Men integration deciding not just to keep Wanda and Pietro from being mutants, but also giving them an established living father in the movies who isn't Magneto so I have little desire to fight an issue that will resolve itself with time.
Wanda and Pietro's parentage right now as we speak is being promoted in Marvel games being played by 50+ million people.
In most of the official descriptions Marvel and who they license to puts out on the character is concerned they are related and to the casual fans one talks to at any convention in the globe who get their knowledge of them from such things or the animated shows they are.
The only place they consistently hasn't been is the comics read by an ever shrinking number of hard core fans. Check that the only place she isn't is current 616 comics as AU comics they have been ignoring it. Wanda and Pietro's parentage post Axis ironically is better respected across Marvel's various gaming outlets and information platforms and even comics they are putting out then Lorna's.