The reason why relink never got any updates is because they could only use the assets platinum games left over

Cygames are literally the worst most incompetent developers in the world which is unholy they are not bankrupt at this point

Once the assets platinum games ran dry they could not build on top of it, that is why they just sent the game to die instead of turning it into GBF-Genshin

You might think this is a schizo theory, but when you give it a little thought, it makes a lot of sense