Republicans probably flip two Senate seats and four Assembly seats-specifically that Camden County and that Monmouth-Ocean districts with the retiring Democrats.
Otherwise, I think the Virginia state elections are a better indicator of what might be in store for next year.
Though the issues in both states seem pertinent. New Jersey Democrats are going all-in on Dobbs. We'll see how it pans out versus Virginia where the higher likelihood of a GOP trifecta makes the issue more salient.
New Jersey is still a state where lower turnout elections benefit the GOP, so I don't think it will work as well here.
Democrats don’t hold any Monmouth-Ocean Assembly districts (they technically have the senate seat due to the party switching Dem). It’s Republicans that are at risk in the Dem leaning Monmouth Assembly seat.
Also keep in mind that the Camden/Gloucester seat with the retiring Dems still went for Biden by 7.