Assuming you're going to ask the question that's at the end of your post: This is a loaded question and we wouldn't accept it regardless of whether the subject itself is on-topic.
Now, if you were to ask "what does this mean for the GTA series?", that's covered by the second entry in our "what is off-topic" help entry:
Speculations on future of the industry, upcoming (but unreleased) games or content, and developer intent on mechanics and narrative
We don't allow speculative questions on developer intent because no one can really answer them apart from the developers themselves, and the most we can probably expect from that end is a dismissive comment somewhere in a press release or interview that will just contain platitudes about no individual being vital and the team still having tons of other highly dedicated and passionate developers who will create new and exciting content for the player base.