"putting this"? what does the 'this' refer to.
How about making the first milestone a working group decision on IPR? As in, the wg is to decide either no licensed IPR, or licensed IPR compatible with an explicit list of software licenses, or any licensed IPR.
That sounds fine, except that it won't work .
Better still, it will probably introduce a time-consuming rathole.
You are suggesting that the working group set some sort of abstract policy on a topic about which the working group, as a while, has little expertise (IPR) and in the absence of any specific IPR-related details on which it would be basing such a decision.
The sort of decision you are suggesting comes about when there is specific proposed specification and a broad community review of it.