Great finale, excellent even. I see we're going Dark Speedy versus Red Arrow next season, right? Past Oliver going on missions for Waller? Laurel Black Canary, and without Sarah having to die? Methinks her fan popularity saved her from biting the bullet when transferring the mantle. With metas showing up next season too (and the prison already built to store them...), it' going to be a big season. A part of me hopes with Ollie's money trouble, and his company "in limbo", that we'll get an episode with billionaire Bruce Wayne trying to buy the place.
A few niggles;
Ollie shot the ceiling but it was away from him and Laurel and at the beginning of the episode (or was this last episode?) they're trapped under rubble. This seems like a MASSIVE misjudgement, as the the chance that none of them were killed by the debris was...y'know, especially since when it was a cliffhanger it looked like they could have got away.
Ollie gives the game away to Slade at the end before Felicity has pulled the syringe out! Slade could have quite easily realised EXACTLY what Ollie meant and snapped her neck.