#1 came out last week. In fact, even before the first issue hit stores, the fan response to the comic was so great that it went from being a 4 issue miniseries to an ongoing one.
So far the comic is a worthwhile addition to the series. Like the shortlived Gargoyles comic, DWD captures the feeling of the show and feels like a true continuation unlike most tie in comics. Besides which, should the sales remain well, it would be a step in convincing Disney that their 90s properties are worth their time.
Also the next several issues should be exciting as the end of the first issue indicates: