I certainly agree that there are open issues - and I guess I don't really expect all the issues to be addressed. The open question, for, me, is whether they will do "enough," rather than whether they will do "everything" we might like them to do.
As for the "cap" (why do you capitalize this?), we don't know, at this point, whether the luxury tax threshold will stay the same, change a bit, change drastically, or just disappear, with the new CBA. So we don't know how much the Phils (or any club) would have to spend to actually hit a luxury tax threshold.
I have to note that, the more clubs enter into contracts that potentially expose them to the luxury tax, the more those clubs will pressure MLB's negotiators to change the luxury tax rules, to "make their problems go away," as it were. We really don't know where MLB's administration will come down on the "big market" vs. "small market" differences among clubs; Bud Selig isn't in charge any more. This, to me, will be one of the more interesting issues that has to get resolved in the new CBA.