http://www.eonline.com/news/896748/dynasty-s-ultimate-diva-is-here-nicollette-sheridan-is-alexis-carrington

The former Desperate Housewives star will take on the role that Joan Collins made iconic in the original Dynasty series. The CW announced that Sheridan will make her debut later this season, revealing a photo of her as Alexis Carrington. “She will return unexpectedly to their world, challenging Blake's marriage to Cristal, seeking to reunite with her children, and fighting to claim what is hers," said The CW.

I don't see how this is going to work. Are they just retelling the whole story from the beginning? I thought Krystle was the blonde anyway..

https://screenrant.com/actors-whoflopped-killed-off-tv-shows/

A former fashion model, Nicollette Sheridan first began being recognized as an actress after appearing in the soap opera Paper Dolls in 1984, though she would gain popularity after starring as Paige Matheson in Knots Landing. With her background, Marc Cherry would later view her as the perfect choice to play real estate agent Edie Britt in Desperate Housewives.

Unfortunately, her experience as a diva came more with drama than the series creator had intended.

After five seasons, Sheridan’s character was killed off in an accident involving a car crash and an electrical wire. The actress would later file a lawsuit against Cherry stating he had wrongfully terminated and assaulted her. The lawsuit was eventually dropped and Sheridan went back to acting. Since her time on Wisteria Lane, the actress hasn’t seen much screen time, though she hopes the recently rebooted soap series Dynasty will bring her some good fortune.

I'M excited for appearance next week. I also like how they not just retelling the stories. Loving all the new twists.

Dynasty promotes Nicollette Sheridan to series regular for Season 2 (http://tvline.com/2018/05/15/dynasty-season-2-preview-nicollette-sheridan-series-regular-alexis/)
Sheridan joined The CW drama as Alex Sheridan in the middle of Season 1.