Some D Tickets are classic and don't absolutely need plussing, such as the horse-drawn Trolley, Peter Pan, Mater's, Dumbo . . . but there is some stuff in Mermaid that I think should be upgraded or removed altogether, not just that we want more Ariel, at least from my perspective. I kinda hope that Mermaid gets a major upgrade in the future, though it might take a while.
I think Fantasyland is inviting for very little kids, but Mermaid's neighborhood has that "down by the pier" look with the nets of dead fish and bland exterior that I think it just might turn off little kids.
It would be great to hear what the official turnstile counts are for the attraction, but I haven't seen gobs of kids congregating around Mermaid when I visit the park. In fact, I see a lot of families with little kids walking right by. It was interesting how quickly they changed Ariel's hairdo and the CGI Ariel to hand-drawn . . . honestly can't help but conclude that the attraction was, overall, not very well-received and that they took aim at what they perceived were the biggest issues.