My S is in the same position. It’s strange - I have never heard of a spring admission offer and we assumed Elon was a backup for him- he has been admitted to much higher ranked universities/business schools with merit scholarships so we were somewhat confused- but not disappointed. Elon must have received an excellent pool of candidates this year- congrats to all who have been accepted and plan to enroll and to those left with the decision of waiting until spring - good luck!