On the deck plans, there's a box you can click on to change which ship you're looking at.
You're welcome to look through the website on your own. I can't link directly to the Wish's deck plans, so you'll have to click on the box with the ship names then click "finder.deck-plans.facet-bar.ship-wish". If you find anything I didn't, please let me know in the comments!
The option to click on the Wish's deck plans probably means that the official deck plans are coming soon. Would you book a cruise on a ship you know pretty much nothing about? People have done crazier things. I think cruises on the Wish will be announced at the same time or shortly after the deck plans are released, and when that happens, I'll have a lot to write about!