It really depends and many variables. The court schedules things and can have an expedited schedule or slow. In California there are 2 different AWB cases, the bush judge who previously struck down CAs AWB has a schedule set to where he’s probably going to issue a ruling before January. The Obama judge who has the other probably won’t rule until mid summer at the earliest. Are there TROs, is a case decided by summary judgement or after a trial, etc. then they’re appealed and that court sets a schedule and can take years to issue a ruling if they really want.
Just a guess, I think most of these cases will be through circuit courts by the end of 2024. That includes the mag limit cases in NJ, MD and CA, AWB in NJ, NY, CT, MD CO and CA.
The early canary in the coal mine are the Mag limit/AWB case already are the 4th circuit court of appeals (bianchi vs Frosh) and the CA mag limit case and AWB cases (separate cases in California both with roger benetiz who struck them down pre NYSRPA). Those cases will will probably be decided by the circuit court of appeals by this time next year (benetiz will have decisions on those in December or January)
The states in these cases, particularly California, really want to slow things down. In all the California court filings, they ask the judges for very extended discovery time frames. Saying they need historical research don’t and that takes many months, etc. They know they are going to lose because there is no history of mag limits or handgun rosters, AWBs etc. I think they’re hoping to extend it years and hope the make up of SCOTUS changes. That’s a desperate move but they really don’t have any other options. Most gun control started in the 1980s and a few things in 1934 and 1968. SCOTUS said the dates relevant at 1791 and 1868, any law must be similar to something then.