I was checking Daragh O'toole's website (don't ask me why, I don't know) and then I noticed that he removed all mentions to Celtic Woman.

This is the page now, with no mention to Celtic Woman at all:
http://daraghotoole.ie/about/

And this is the same page in August 2022, where he mentions his work with Celtic Woman:
https://web.archive.org/web/20220813054829/http://daraghotoole.ie/about/

His departure of the group's musical direction would very much explain why they had to cancel this year tour in order to give a new musical director space to work on new material. And as well the lack of a direct reason for us, the fans, about it since it is a very internal matter.

Detective Granuaile at your disposal.

Celtic Woman will close the Music City Irish Festival Virtual on march 17th. This event will also count with Mairéad Nesbitt on both march 17th and 18th.

Facebook event link: https://www.facebook.com/events/940946853740488
Irish Music Magazine Events on Facebook for all the festival guests: https://www.facebook.com/TRADIMM/events

A new image was found!! It includes the newest member of Celtic Woman (Hannah Traynor) to advertise the upcoming symphony tour.

source: https://scottsdaleperformingarts.org/event/celtic-woman/

A website posted about the upcoming symphony tour from Celtic Woman called "A Christmas Symphony"

Description:

Celtic Woman is the most successful all-female group in Irish history, with a legacy of 12 consecutive Billboard number ones, 10 million album sales and an incredible 2 billion online streams to date.

This is a rare opportunity to hear Celtic Woman’s angelic harmonies with the thrilling live sound of a full symphony orchestra in an intimate concert setting.

Christmas in Ireland is all about hospitality. The visitor is greeted with the traditional “hundred thousand welcomes” and is offered the best seat in the house.  Now we invite you to join in the festivities, as the crystalline voices of Celtic Woman melt your cares away.

From delicate traditional Irish carols to magnificent uplifting anthems, Celtic Woman has a wealth of seasonal music to gladden your heart.  Hear stunning new arrangements of the classic Silent Night and the ancient Gaelic carol Dia do Bheatha from their holiday album, The Magic of Christmas. Listen out for the jingle of bells as you glide through the snowy landscape of Sleigh Ride and get ready to sing along when it’s time to Deck the Halls!

When shimmering strings and magnificent brass fanfares are fused with the tinkle of the Irish harp, the proud call of the bagpipes, and the beat of the bodhrán drum, you have a performance to remember. When Celtic Woman sings and plays for you, you have a performance you will never forget.

So, take your seat – and let the holiday season begin!

Source: https://bpo.org/event/celtic-woman/