I also wonder how it’s going to work out
I called Admin about it today and explained the situation. All they said is that they’re aware it’s a challenging situation for applicants who have more than one acceptance, they understand we have to narrow down to one single acceptance by tomorrow’s deadline, and they understand how difficult it is to refuse other acceptance offers when a campus assignment has not been finalized.
They assured me they are actively working on assignments and will keep applicants posted about new assignments ASAP (by updating the secondary portal and sending details via email).
I did take comfort when the admissions counselor said that historically they’re able to accommodate more than 90% of early/regular decision’s first preference for campus. No guarantees, of course (especially considering there’s a third campus location).