Yeah but 2 funnels on the aft of the ship just makes no sense, and doesn't really line up with their artist rendition.I think existing funnels stay, two funnels possibly added to almost the far back of the top deck there, basically rubbing up against the edge of the deck. These could be suite rooms. and then two at the front of that top deck where the water slides start. That would be my guess.
I wonder if they plan to cover over the open to below parts, kind of like how MSCs World Europa is, to make more use of top deck space. Then they would have a full top deck for funnels, deck parties, etc.
For those that don't know what I mean by this, here is a picture of Europas Promenade, the back part is open to the sky, but a majority of it is covered