Do think there's any great significance with the different flowers that are used in the anime? The iris for Capulets and the rose for the Montagues.
I read before that the white iris (on a red background) used to be a symbol of Florence, Italy until the de Medici family changed it into a red iris (on a white background) as a symbol of change in political power. The rose is used a lot historically, too.
I really don't know how Gonzo will wrap this all up, though. There's still a lot of development that needs to be done and questions to be answered. It kinda makes my head spinny, hehe.