Stumbled upon a German item on Iona, link below plus Google translated version. Progress looks on track.
AIDAnova was completed very late - will Meyer Werft P & O Iona be able to deliver on time? - the current status
At the shipyard at the beginning of September - The P & O Iona is already looking for a ship, the name is already there, but still overlapping, well above Io. It is difficult to estimate how long it will take to complete, too many factors are involved. With AIDAnova, Meyer Werft 2018 was able to deliver a ship much too late. She belongs to the Helios class, just like P & O Iona.
But this time it is a little different, you are prepared for the possible eventualities. With AIDAnova you have made a type ship of the Helios class. It was also the world's first cruise ship to be 100% LNG-operated. You have gained experience with this class of ship. In the meantime, Meyer Werft was also able to compensate very well for the changeover from two to three newbuilds per year.
It is currently a glimpse into the glass ball, if you want to say whether the P & O Iona will be delivered on time or too late. The construction has already made some milestones, everything seems to go according to plan, but a single fact already shows the big difference between the construction of the AIDAnova and the P & O Iona: the P & O Iona has its bridge compared to the construction phases between the two Ships were put on two months earlier. And although the bridge is one of the most complex units of a cruise ship. This is positive and is an indication that there will be no major delays in the second ship of the Helios class from the Papenburg Meyer shipyard.
P & O Iona becomes the largest cruise ship for the P & O Cruises. It will be commissioned in the spring of 2020 and as mentioned, everything looks as if the deadline can be met. In 2022, the P & O Iona will get another sister ship, with these two new buildings P & O Cruises will be able to significantly increase its capacity.