I just saw a message on the Wake website that explains more about their planned growth – they are actually planning to have 6,200 students in 2029-30: https://admissions.wfu.edu/2025/07/early-decision-faqs-080125/.
Also, in that message, the president said the class of 2029 has 14% Pell-eligible students, a “notable increase” from recent years. Only info I could find about Pell grants in past years was in the 2024-25 CDS for classes of 2021 and 2022 (related to graduation rates), and those years looked to have under 10% Pell-eligible students, so 14% would be a big jump.