The U.S. reversed a new policy on student visas after a high-profile confrontation with Harvard University, MIT and hundreds of other colleges, ending a standoff that could have sent thousands of students back to their home countries and left schools scrambling to plan for the fall.

U.S. District Judge Allison Burroughs announced at an online hearing on Tuesday that the government had agreed to rescind last week’s requirement that international students take at least one in-person class, even amid the resurgent coronavirus pandemic and as colleges prepare online-only coursework.

But she said the case isn’t closed, raising questions about the nature of the agreement and whether U.S. Immigration and Customs Enforcement (ICE) had abandoned its position or was retreating and regrouping to fight another day.