Details still pending but it seems that the network is pulling the last few episodes of this season ( as well as next season since they already preordered 4 seasons) and " moving them to digital release"
Based on that info alone, I don't like that, particularly since the change is coming in the middle of the current season. But guess will have to see what they are going to do once the full details are known.
Shuffling a show around tends to kill ratings and often seems to be a networks way of justifying an eventual cancelation/etc