I would never underestimate the lengths people are willing to go to to 'crack' games. Countless online-only games have been cracked with users reverse engineering the network protocol and writing their own servers. LLMs will probably greatly ease that process as well.
this era is well and truly over. you've got pre-release hypervisor bypasses and then a conventional crack a couple weeks later.
edit: i might've misinterpreted your comment, i expect some older denovo titles might never get the modern treatment