I can vouch for the team of developers. They actually are working on things, unlike most people thing they just say that to keep people interested.
It'll come when it's ready. Marco already provided a rough estimate in the MXL 2017 post, explaining when the next ladder reset may come with some of Sigma's additions included in it (see the MXL 2017 announcement post). Clearly Sigma won't happen before that time, otherwise he wouldn't have announced a new Ultimative ladder beginning over summer sometime.
Play hardcore if you're bored. Learn new mechanics and what to be prepared for. You can roll through the game without thinking and not die in softcore, but as soon as you hit hardcore, you realize how many things can kill you without you looking for it or being prepared. It helps to learn the game more. I'd say that's the place to start if you're bored with the game. That, or go play internet flash games -- I heard
www.addictinggames.com is a good place to begin.