We can't know for sure until it gets dumped.
If I recall about the GLK cartridge, I might have 2 more extra copies of it, but I'm not entirely sure.
I have about 400 cartridges or so, and it is kinda hard to keep track every one of them.
I should do a deeper research, but I'm too lazy right now... : P
Are there any kinds of wanted lists about currently undumped multicart cartridges?