Just read this in another blog (asylumist.com) by an asylum attorney about rumor of additional countries to be included in ban:

[Update for February 2, 2017: I have heard an unconfirmed rumor out of the State Department that additional countries will be added to the list of banned countries. This is not confirmed, but here is the message I received: “There is a draft order being circulated at the State Department. The order has language extending the list of banned countries to Egypt, Lebanon, Afghanistan, Pakistan, Philippines, Mali, Colombia, and Venezuela.” I suggest people from those countries pay careful attention to the news, in case the countries are added to the list, and I suggest that people from these countries not travel outside the U.S. until we have some clarification.]