Captaaainuniverse
Time-Traveller
Just saw AoT s3 p2 first ep myself and I'm pretty much in agreement with @NormanicGrav , as a manga reader I can say the OP is skip able, not for the music that seems to be a mash of season 1 and 2's OPs but as it spoils basically everything you'll expect to see in this part, doesn't look half bad though.
Plot of the episode itself ends somewhere you'd expect a big fight to start, that's the draw of this part though - a huge fight, likely going to be the majority of part 2
Plot of the episode itself ends somewhere you'd expect a big fight to start, that's the draw of this part though - a huge fight, likely going to be the majority of part 2