Joseph,
According to the REMAH – the ban has no expiration date, see Pischei Tshuvah (link below) that many Rishonim that lived after 5000 quote and support the ban (like the RAN, Mahram M’Rotenberg, Ravyah, etc hence they all agreed thar it has no expiration date)
“http://www.hebrewbooks.org/pdfpager.aspx?req=14398&st=&pgnum=12