I hope you like your Journeys cruise! We took our first one this spring and absolutely LOVED it. It was 16 days on the Spirit from Miami to Seattle. We booked our next Journeys cruise before we disembarked, we loved it so much. The crowd was experienced and not tightly wound, the vibe was amazing. We made friends. We got incredible Carnival (and general cruising) tips from all the Platinum and Diamond folks. And we were able to get to know the crew so well that when the crew put on a talent show toward the end of the cruise it was an incredibly personal and moving experience.
I only went to a couple of the stage shows, so I don't know what (if anything) they repeated but I know they brought on several special acts throughout, I remember a magician specifically but there were others. We're more into the comedy. They rotated new comedians on throughout the cruise, and I think there were 6 or 7 different ones. Before the cruise, I'd been afraid I'd be bored, but the only time I cracked a book or watched any of the tv I'd downloaded was when I got stuck in the room with a 48-hour bug (not covid, I was tested by a poor med staffer in a hazmat suit!)
I don't recall any repeated dinner menus, although some dishes were just slightly altered versions of previous offerings. There were many items I'd never seen before, and one day we had an expanded Indian buffet that was phenomenal. We'd been warned that fresh fruits and vegetables might disappear by the second week, but that didn't seem to be the case although that may have been because of our itinerary. We're doing a 12 day transatlantic next spring and I'm interested to see what happens with the food on that one. But to be honest, while it's always fine, we don't cruise Carnival for the food 😂
(We also booked a 14 day Princess cruise for next year. I think we're just long cruise people now.)