I personally think that the salary cap is still being decided.
The logic of not talking about it is to avoid having to pay above market value for domestic players who, honestly, have not warranted being paid above it.
You throw a number out there and agents will be quick to do the math, see that their client are among the best available at this time and negotiate above MV.
I think they sign the domestic guys first. Then they go international....then they release the cap.
Some teams might not go hard there but others might.
Just saying, I'm not surprise the league won't say what it is quite yet