Finally, AILA (the American Immigration Lawyers Association) has answered.
THIS IS WHAT THEY SAID
No Current Plans to Expand Travel Ban Beyond Current Countries (Updated February 2, 2017)
“In response to rumors of plans to expand the travel ban to other countries, DOS infored AILA that there is no addendum, annex, or amendment now being worked on to expand visa revocations or the travel ban to countries other than those currently implicated in the Executive Order entitled, “Protecting the Nation From Foreign Terrorist Entry intro the United States” This includes Colombia and Venezuela which have been widely rumored to be under consideration. DOS confirmed that there is not information that supports such a rumor and asked that AILA members help end the spread of this false information”