Well, this one was all over the place, covering multiple disconnected plots at once. It was a bit awkward to tie Diggle to Thawne so that they could resolve his story arc in a way that had a connection to this show's ongoing Thawne arc. They even lampshaded how long it's been since the two of them have actually met.
It feels kind of like a fakeout to tease us with the "box" thing for a couple of years and have Diggle decide to reject the call at the end. But the fact is, it does make more sense for Diggle's character that he'd choose his family over cosmic journeys. Maybe it was a mistake to indulge the fans' "Diggle is John Stewart" daydreams in the first place.
Did anyone recognize the voiceover lines when Diggle was perceiving the alternate lives he could've led? My guess is that they're John Stewart dialogue from the comics.
And they were dealing with loose ends from two other Arrowverse series here, since there was also the followup on original-face Thawne from
Legends. I'd forgotten all about his redemption arc there. Nice to see that he got a happy ending after all.
I noticed Brandon Routh's name in the opening guest credits, so after Diggle rejected the box, I was halfway expecting Ray Palmer to show up as a Green Lantern and save the Flash from Meena.
I like the rainbow-eyes effect of Cecile's new power. It looks cool. Though it didn't occur to me that the aura colors might be based on the Green Lantern spectrum.
Cecile's ability to make criminals feel the emotions of their victims reminds me of the first short story I ever wrote with serious intent to sell. It was called "To Walk a Mile," and it involved an experimental neurotelemetry implant for rehabilitating criminals by letting them feel others' emotions directly, so they could learn empathy. I never did sell it.
I don’t get why they can’t use the Lanterns on any way. It’s not like the movies are using them.
There is an HBO Max series coming, though.