No Spring Rush at KU due to New Zeta Chapter?

[midwest mom]

I heard that the Univ of Kansas sororities are not having Spring Informal Recruitment this spring because the Zeta's are establishing a chapter at KU.

If this is true, why would the other sororities still not hold their spring recruitments for any openings they might have?

Also, how does recruitment work for establishing a new chapter at a school? Will the new chapter officials notify the girls that didn't get bids during the Fall Formal Recruitment of their recruitment? Also, how do they build a new chapter and get enough girls to join right away to support the chapter?

I wasn't in a sorority so all of this is new to me.

Thanks!