With the current landscape of To-do list market (Any.do, Wunderlist, Todoist, etc. etc. etc.) this doesn't even feel like a MVP, more like an early alpha without the label.
Wunderlist hasn't given an exact date for when they are retiring the product but they have said it will be retired at some point. (Probably once the feature list of To-Do moves up to where Wunderlist is.)