If there is a 9.2 between all the lawsuits, layoffs, people quitting, covid still being a thing, and wild fires it will most certainly be delayed, likely as long or longer than 9.1 was.
The up shot is that as a result I don’t see there being a 9.3, so 9.2 will probably end the expansion and set up whatever is going to come next. As such I think 9.2 will be late first quarter or early second quarter next year - around February or March.
Having said that, If they can get a new expansion out in 2022 depends entirely on how much work they have already put into it internally. Putting out a patch and putting out an entire expansion are two very different animals. We may not see a new expansion until 2023 - and it may be vastly trimmed down from any that came before it.