Next month some of us may see it in the top secret testing phase.
I would hope so if they expect an October timeframe.
I also hope that those that get to fiddle with it first and assuming it really does improve speed, that they don't get all bubbly as all too many do with previous updates that were going to speed things up, that not only didn't make things faster, made them slower. This from a bit back.
That said, my newly installed HR24s are pretty darned speedy, with only an occasional pause (to catch their breath I suppose... ). But I would like to see a guide with at least a 3 hour window...