When INS is implemented we should be able to program in a new WP I believe once we receive a new TGT from the JTAC. As for employing a GBU it's going to be like you said. You will know where the TGT is already and drop on it once the lase is shot.
Im not 100% sure but I think the release cue for CCRP is supposed to auto release the weapon for n us to increase accuracy, which they might be working on.
There is a long list of updates and RAZBAM is quite open about their progress on this aircraft, which is awesome.
http://forums.eagle.ru/showpost.php?p=2618507&postcount=1