Are the two characters different? Are they the same? Do we really have two pages for people with the same nickname?
They are different. Definitely not the same character.
Btw, I think Ava Orlova > Red Widow from Winter Guard.
We don't really have any idea who the new one is. One interesting plot twist they could do is make her the original Black Widow. People also speculate she might be Iron Maiden.
What do you think?