Concerns over carcinogenic effects of glyphosate, the active ingredient in the weed-killer Roundup, have not yet been resolved, which may lead to the removal of glyphosate based products from the EU market or a short term renewal of the license while more detailed studies of the chemical are undertaken.
http://www.dw.com/en/eu-to-extend-license-for-controversial-herbicide-glyphosate/a-19363350