The problem with AGT as a finale is that, while it's a belter of an episode to end the seven year run on, it's what we call an "open-ended finale". Because they knew they were going on to do movies straight afterwards, it had
to be that way.
They could wrap up
the show, but they could not provide closure
to the show. If that makes any sense?
Yes, it does. If, say, the decision was made to make an 8th season instead of the movies, then they could have taken an entire year to provide closure for the crew. We could have seen Picard and Beverly finally get together. They could have retired and gotten married, while Riker would eventually have gotten the command of the Enterprise-D he'd always wanted for the last 7 years. He and Deanna could have gotten hitched along with the Picards. I could also see Data getting a command of his own (maybe a Starfleet Corp of Engineers ship) and taking Geordi with him as his first officer. And finally we could have seen Worf return to the Klingon homeworld as a council member or something.
Instead, we got eight collective hours of the Stewart and Spiner Show, with little to no character development for anyone else.