Same for Arrested Development. The logic here is broken. A show isn't ended until it's actually officially cancelled. If a show isn't cancelled/ended, then it means it's returning.

There's no site logic here, it's just edited and locked by a moderator.

Based on what I have read, AD sounds more done than anything else, and we can always change it back if another season is announced (I don't think we need to wait 8 more years to make this decision). But from what I have read with regards to Marco Polo, it isn't as firm (even though S1 did not fare well with the critics, for $90 million I think we all expected more) but whether it's ended/canceled or not, we can wait a bit longer to see if a season 2 is announced.