Not sure why Rachel Skarsten is in this. The Toronto actress made the best of a shitty situation in Batwoman. Maybe she'll be in S4, Villanelle hasn't really had a nemesis, that would be great!
I've heard the rumour as well, Samara Weaving is also in the running - tough call. Comer is in the next Affleck-Damon written film called The Last Duel. They are not very good at directing women, if she's relegated to window dressing status I will fart in their general direction.
After S1, they teased rivals to Villanelle, none was a serious threat. Now that she's crossed the floor, the FSB is going to want her taken out. She goes from being the hunter to the hunted. They could do infinitely worse than Rachel Skarsten for the role. Since Toronto money went into the making of Killing Eve, time to give something back.
Rachel Skarsten could have easily played Villanelle or Furiosa - if she had a better management team. She was in the under-rated Molly's Game.