RabbitEars is saying WJAR has added a fourth subchannel. No word on programming yet, but The CW could be moving there from WLWC, which may have been sold in the spectrum auction. Right now 10.4 is 480i, but could easily go to 720p with CW.
http://www.rabbitears.info/market.php?request=station_search&callsign=50780#station
http://www.rabbitears.info/market.php?request=station_search&callsign=50780#station