Its ready when its ready.
Get impulse, get the patch and speed it up by giving feedback.
Because feedback is - belive it or not - very important to them.
So far they pay huge attention to the forum beta section and alter the game accordingly.
The last issues revolved to a huge degree around carrier and strikecraft balancing.
(scuttlebug, building speed, flak performance)
If you install it you notice a huge bias in AI fleet composition twoards strikecraft.
we are at the point of "let them eat carrier fleets till we a sure there are no strikecraft issues".
Also, there were quite some changes to flak, and i bet they want to know if the changes are practicable.
They will probably NEVER go 1.1 without more or less general positive feedback on flaks.
So, have you eaten your share of strikecraft today with the new flaks and commented about it? THAT would speed up the process. Sitting here and mutterin "is the beta over soon?" gets us nowhere.