Runes and Masteries for New Season.

Let's be clear from the outset: this is not a criticism, I'm simply curious about where things are going.

Last season there was the announcement that Runes were a priority for a rework - this has come and gone, and we're now looking at some rather large, sweeping changes to the state of the game. There's also the question of what's going on with the Masteries - typically RIOT takes a swing at tweaking those, as they've seen a new iteration with every previous season to date. The radio silence regarding these two systems leads me to wonder: are these currently off the table for changes? Are changes being considered, but so nebulous that there's nothing to report? What is the current RIOT party line regarding the general "game-health" of both the Runes and Masteries systems?

Thanks for your time!