When I first saw stuff about this game I was very perplexed. However, as I kept up on it (mostly waiting for a train wreck) I actually felt kind of optimistic. I mean, it seems uniquely suited to the DS, and his character is a good target for a gamer's experimental pokes. You could make Daffy react in ways way over the top and still be in character.
I think this game might actually be good! The interview seems to back this novel idea up. They seem to really articulate well why this license works will this platform. That's something that developers don't often "get."
One thing tho, there's already a Rabbit Rampage game. Sunsoft SNES. It's a good licensed game, no less.