Seeing the culmination of most of the DCCW heroes here makes me wonder what in the world to expect from Justice League next year. This really did feel similar to all the lead-up to The Avengers, even with a similar premise of battling aliens and ending with some of the heroes palling at a bar or restaurant.
Now don't get me wrong, I enjoy elements of both the DCCU and DCCW, good parts and bad, but I do hope the films emulate some of the optimism that's on display with these shows.
Also, if the folks at the CW, Warner Bros, or whomever aren't thinking of packaging these episodes as a separate DVD/Blu Ray with any additional material or cut scenes- I would put good money on some scenes or character moments being cut out for time- then they're missing a big opportunity.