Hi there,
I've also applied to the George Brown RPN to RN Bridging program for September 2022 and I just got my offer of admission on February 24. I honestly didn't expect to hear back from them this early. Btw, I did my Casper test on Feb 1st.
I think they'll be sending out offers until May 1st, which is the deadline to accept offers. I hope you hear from them soon!