Following [yesterday Harvard announcement](http://talk.qa.collegeconfidential.com/harvard-university/2190771-just-in-harvard-will-hold-all-2020-2021-courses-online-tuition-stays-the-same.html), the Student and Exchange Visitor Program (SEVP) announced modifications to temporary exemptions for non-immigrant students taking online classes due to the pandemic for the fall 2020 semester.
As a consequence, as reported by @CCEdit_Torrey in the article below, “international students who planned to attend US colleges this fall were given a new threshold to cross by US Immigration and Customs Enforcement yesterday. If their classes will be operated entirely online this fall, those students will be prohibited from remaining in the US or traveling here on a student visa.”
Furthermore, “if students come back to the US for in-person classes this fall but the school later switches to online-only instruction, those students must either leave the US or transfer to a school that offers courses in person.”
https://insights.collegeconfidential.com/international-students-barred-from-online-us-colleges