In the recent preliminary bid award, the most junior first officer in every base had a September 2023 hire date. That would include everyone who completed Indoc and was allowed to bid.
The most junior DFW and PHX captain had a September 2023 hire date, the most junior ORD captain had an August 2023 hire date, and the most junior MIA captain had a March 2023 hire date. Everyone with DFW, ORD, or PHX as their highest preference got their first choice.
Even though there were no posted Phoenix vacancies, all pilots who had Phoenix as their highest preference were able to hold it through backfills.
Once you start Indoc, they will try to get you through the sim in 8 weeks. Retraining E145 pilots caused a few delays but they should be done with that. The wait for IOE is generally 3 days but FOs might wait a little longer if they have CAs to push through first. FOs get 25 hours of IOE and CAs get 50 hours of IOE. I do not know what the current wait for Orientation and Indoc is.