Complex sentence: After SG-1 re-captured Adria, and extracted the symbiote, it is unknown if more Ba'al clones exist, although it is likely, as he makes a return in the second of the Direct to DVD Stargate Movies scheduelled for late 2007.
Split into simpler sentences: After SG-1 re-captured Adria, and extracted the symbiote, it is unknown if more Ba'al clones exist. Ba'al makes a return in the second of the direct-to-DVD "Stargate" movies scheduled for late 2007.