That wine should be about 19% alcohol if the sg readings are correct. I take it you don't have access to potassium sorbate to stabilize it. If it has cleared and you've racked it off the lees enough you're not getting any sediment, you might rack it, top it up with pomegranate juice, and stick it in the fridge. The worst thing that's likely to happen is it would restart and ferment the new juice. At 19%, that wine could use some dilution with juice.