So I watched the latest one, and man was it awful, story and canon wise.
Consider this: for most of the season, Noah was hung up about the painting and his death. Two episodes before the finale, Noah dies, as the paintings foretold, but! Noah is brought back to life at the end of the episode.
Not to mention the problem that if they were painted by Isaac... how could he have painted them? He was painting the future where Peter destroys the city. Apparently, there must have been other paintings after the explosions and the series of eight, as at some point Isaac realized the end of New York wasn't going to happen.
The Matt Parkman storyline makes up for this huge storyline hole, though it'll be strange moving on from here....