You're an idiot
Really, I think SE doesn't need a template for improvements, they've just go to keep doing what they're doing now, which takes time. Balance is a trickly thing and SE is one of the few companies that seems to actually pay attention to balance.
Not only that, SE is mindful of the equipment they've released in previous years and seldom obseletes various gear and never endgame gear.
While it does make things frustrating for jobs that want a new shiny in each update and expansion, its a better system than just making updates for all jobs "just because" and giving no thought to balance at all.