Celtic Thunder Greatest Songs tour

So CT is doing something called Their Greatest Songs tour this Fall.  I'm leaning towards going to see the show in Wheeling, WV.  Long story about why, but if you gotta travel, might as well do a couple things.  Show sounds interesting.  Apparently, some of the "old" members come back on some kind of a random basis.  I'm happy as long as they still close with Ireland's Call.

They posted on their FB page the names of the 4 old members returning for selected concerts: Paul Byrom, Colm Keegan, Emmet O'Hanlon, Michael O'Dwyer. Notably missing from that list are Ryan Kelly and Keith Harkin.