PA still isn't allowed to start counting early votes any earlier, so I wouldn't count on getting the results there or Wisconsin on election night, but Michigan can start counting them earlier, so might get that result the earliest of the 3. Early voting not looking great for Harris there either. Dem early voting is only by 3, with 11% being independent.
I suppose the hope for Harris is that gains in early voting will canibalize election day voting for Trump, but almost for sure it won't help her own tally because dems aren't likely to suddenly change their voting habits and show up en masse for in person election day voting. She could also hope a significant number of the republican ballots are democrats who switched registration to vote against Trump in the primary, but that's a few thousand, not 700,000, and most dems on here denied that existed at all when they were trying to convince themselves that it was a huge Trump supporter who tried to assassinate him