We don't have CGs for Gunnar/Scar/Tank do we? I mean the sprites are already there, I don't think it's impossible to just use them for future development - or any other already existed contents - you just won't get new CGs for them.
IMO the reason they don't talk about it, is cuz it might make someone look bad / negatively affect their image. Hyao seems good at networking, so basically PR demands.
It kinda feels weird that LD just like a prestige grandpa that gets left behind and try desperately to catch up, but not on the right points.
When you think about it, LD doesn't really have any plots that deepen in, basically all stuff are just finished the "introduction phase".