Rip organizing a new Time Bureau makes sense, but why is it based in Star City in 2017? I mean, if history shows anything, it's that Star(ling) City in the 2010s is one of the most lawless, unstable, and frequently endangered cities in the world. And metatextually, the Time Bureau doesn't strike me as the sort of thing that would lend itself to Arrow crossovers.
Also, I wonder how much Rip's ideas for the Time Bureau's techniques were based on watching Men in Black on movie night aboard Gideon.
The Legends' post-Legends life situations don't seem to make that much sense to me. Okay, it sounds like Sarah, Ray, and Nate were all still operating as superheroes, but their day jobs didn't make a lot of sense. As I remarked in the Flash thread, I don't get why Nate and/or Firestorm didn't join Team Flash during the time that they were down a member. And surely Sarah and Ray would've been welcomed back onto Team Arrow, although I guess we don't know yet what their disposition has been since the island-shattering kaboom. (I also note that Stein wasn't one of the names Cisco dropped when mentioning people who'd helped him with his plan to get Barry out of the Speed Force.)
Speaking of post-Legends jobs, that tag scene with Amaya was unexpected. I didn't know she could do that with her ashe, summon several of them at once and have them operate as separate entities rather than gaining their abilities within herself. But it is reminiscent of some of the things we saw her granddaughter do in the animated Vixen. I suppose her skills have improved since we last saw her. Anyway, the implication was that she's gone down a darker path since returning home, but given that she's trying to fight off the atrocities of colonialism single-handedly, that escalation kinda seems justified.