Come on... You have absolutely no idea where they were in the process, you have no idea why they didn't finish and you have even less of an idea how a new auditor would possibly finish the job if ARYC doesn't cooperate!!!
"It depends if the new auditor is willing and able to pick up where RRBB left off. They were very, very close to becoming current "
no new auditor is going to pick up where a past one left off imo (i started auditing too many years ago imo - D&T). one filing said that RRBB produced no reports which is bad news also. there isn't a place for the new auditor to pick up from then imo. That written the early years are very small so hopefully that shaves a lot of time off.
either way this one will be worth the wait imo. don't know when or if the new auditor started.