It appears that Adventure of the Seas will likely be the only Royal Caribbean ship in Bayonne during the summer of 2020. The 9 night Bermuda/Caribbean sailings always depart on a Thursday, arrived in Bermuda on Saturday and then arrived in St. Maarten on a Monday. Adventure will have 9 night itineraries on: 05.21.20, 06.18.20, 07.02.20, 07.30.20, and 08.14.20…In between those sailings, Adventure will still offer 5 night Bermuda sailings.
However, I spoke with someone who is aboard Anthem right now and she said that she asked an officer aboard the ship what they thought, and they mentioned that they believe a Freedom Class ship will be sent to Bayonne in 2020. We may just have to wait until the week of December 10th to find out (when Royal officially released the Summer 2020 Itineraries)