It has been reported that Chloe will tour with CW in 2021.
Cool !
It's believed at this time that she will only fulfill her roll as a guest on the Celebration tour next year. It's unknown if she will be in Celtic Woman if they do any more shows in 2020 (ie. in Killarney or on the Christmas/symphony tour) or if she might remain with Celtic Woman after the Celebration tour, whenever that actually ends up happening next year (I'd be surprised if it goes ahead as scheduled in spring 2021 ... if we don't have a vaccine by then, I can't see it happening).