DOHA, Dec 7 (Reuters) - Talks on reviving the 2015 Iran nuclear deal are expected to resume on Thursday, France"s foreign minister said, although he added that he was not encouraged and feared Iran was playing for time. "The elements... are not very encouraging," French Foreign Minister Jean-Yves Le Drian told a French parliament committee, referring to the seventh round of nuclear talks between Iran and major powers that began on Nov. 29 and paused on Friday. "We have the feeling the Iranians want to make it last and the longer the talks last, the more they go back on their commitments... and get closer to capacity to get a nuclear weapon," Le Drian said. Under the 2015 deal struck by Tehran and six major powers, Iran limited its nuclear program in return for relief from U.S., European Union and U.N. sanctions. Then-President Donald Trump pulled the United States out of the deal in 2018 and reimposed harsh U.S. sanctions, and Iran began violating the nuclear restrictions a year later. Le Drian said he expected talks to resume on Thursday, echoing reports by Iranian media. A senior U.S. State Department official said Washington did not yet have a confirmed date. The indirect U.S.-Iranian talks in Vienna, in which diplomats from other nations shuttle between them because Tehran refuses direct talks with Washington, aim to get both sides to resume compliance with the deal. However, last week"s discussions broke off with European and U.S. officials voicing dismay at sweeping demands by Iran"s new, hardline government under anti-Western President Ebrahim Raisi, whose June election caused a five-month pause in the talks. A senior U.S. official on Saturday said Iran abandoned any compromises it had made in the previous six rounds of talks, pocketed those made by others, and demanded more last week. Speaking on Monday, Central Intelligence Agency Director Bill Burns said the agency does not believe Iran"s supreme leader has decided to take steps to "weaponize" a nuclear device but noted that it has made advances in its ability to enrich uranium, one pathway to the fissile material for a bomb. Iran denies seeking nuclear weapons, saying it only wants to master nuclear technology for peaceful purposes. "We don"t see any evidence as an agency right now that Iran"s supreme leader has made a decision to move to weaponize," Burns told the Wall Street Journal"s CEO Council Summit. Burns described Iran"s challenge as "a three-legged race" to obtain fissile material, to "weaponize" by placing such material into a device designed to cause a nuclear explosion, and to mate it to a delivery system such as a ballistic missile. On weaponization, Burns said "the Iranians still have a lot of work to do there as far as we judge it."