With other top aircraft coming like the Rafale and Eurofighter and other planes in the game currently equipped with Laser/GPS guided bombs it would be a nice addition to these planes that carried them.
The Gbu48, 49 and 50 are not LJDAM. These are (to put it simply) GBU 12, 10 and 16 with kits allowing GPS + Laser guidance, these bombs are also called E Gbu II
Hopefully that helps there has been an accepted report but there is such a disconnect between accepted reports and when/if it ever actually gets added or fixed. Especially for weapons already in the game.