Neat. I wouldn't mind trying to play the games as Della. Would've been Donald, but hey, I'll take what I can get. Della's grown on me since her development in Season 2 of the reboot Ducktales.
I second this. A playable Donald would be awesome. DuckTales is great, but I don't think a lot of people have or ever will establish a significant bond with any new characters. It's such a classic franchise, and any new citizens of Duckburg, however great they are, will forever play second fiddle to the original, main line of characters.
Still, adding Della is a nice touch for those interested!