BRUSSELS—The Belgian government was set to reverse course on Wednesday by allowing theatres to reopen after a court suspended their closure ordered a week ago to try to stem the surge in infections from the Omicron coronavirus variant. The ruling from the Council of State did not cover cinemas, but the government says they too can reopen because they operate like theatres, with audiences seated and obliged to wear masks and only allowed in with a COVID pass to prove vaccination, a negative test, or a recent recovery. Georges Gilkinet, mobility minister, said in a tweet that the government had agreed to both openings. A final decision will be taken by ministers and regional chiefs later on Wednesday. Other indoor venues, such as casinos and bowling alleys, will remain closed. Prime Minister Alexander De Croo’s government and regional chiefs decided last week to close cinemas and theatres and play sporting …