I disagree with @gibby. They did not pull from the WL to fill those 340 spots. IMO they made the decision to take the tuition hit this year. So while C24 will be 1660-340 students, C25 will be 1660 (target class size) + 340, balancing out.
Of course then they need to figure our swing housing since all those 1st years won’t fit in the freshman dorms.
Applications may rise due to test optional, so the acceptance rate may decline.