(22 Feb 2020, 3:47 pm)tyresmoke wrote From the last conversation I had with people in the know, they're looking at replacements for both the X18 and X93 as both are equally demanding and high mileage routes with a strong focus on seasonality. There certainly won't be anything in place for summer 2020 but maybe through the next winter season they'll replace the fleet? The X93 fleet will be 6 years old and X18 5 years old by that point.
Both are the same age - 7529-33 were new in September 2014 and 7401-6 entered service in January 2015.