So she'd go from looking like this:
To something more like this:
The sexualization of second graders? Perhaps. That's the minefield Nick is left to negotiate.
I think the idea is intriguing and see nothing wrong with Dora getting a bit older and wiser, embarking on a bit more complex adventures (heaven knows one of the greatest needs in television is for productions with curriculum for children over the age of four). But I am, as a father, put off by the Bratz dolls and would steer Loretta clear of Dora if she adopted something of that look. The odds are against it going that far, but we'll see where the design winds up.
Of course, no plans or decisions have moved beyond the brainstorming stage at this point, but you can read all about the current prospectus here.