So they in theory could use Al for intelligence gatherings even for events unrelated to the particular Sam's "mission"?
When they tried going off-mission in the original series, it usually didn't work. When Sam leaped in two days before the U2 spy plane crash, Al lied to him about Ziggy's predictions and tried to get Sam to warn the government about the U2 incident, but time/fate/etc. wouldn't let him, because that wasn't his purpose. By the same token, attempting to exploit a Leap as an opportunity to gain historical intelligence unrelated to the Leap would probably backfire in some way.
I think maybe the reason Sam didn't meddle in big events may have been that the inertia of time wouldn't let him make any large-scale changes. He helped people in more intimate ways because they had less of a global effect on history, so the timeline didn't resist those smaller-scale changes. He couldn't prevent a war or a catastrophe, but he could help individuals who fell through history's cracks.
Anyway, what would be the intelligence value of information collected from decades in the past? As I understand it, in the intelligence game, information has a shelf life. Older secrets aren't as important as current ones. Nobody but historians would have reason to care about what a government no longer in power was planning decades ago. Okay, maybe in some circumstances you could, say, dig up some dirt about a current leader's past indiscretions that would damage them if they were revealed. But there would be a narrow set of circumstances where that would be useful, and it would require the Leaper to coincidentally be around on the same day as an incident unrelated to the Leap. Which could happen, as in the U2 case, but it wouldn't happen predictably or reliably.
I mean, sure, as Asimov's "The Dead Past" established, a time viewer could be very useful for spying if you had complete control over it and could set it to spy on events mere minutes or seconds in the past. But that's not how PQL works. It's a crapshoot where and when the Leap ends up or how long it lasts. Which makes it a pretty crummy source of intelligence.
I think that intelligence agencies will be a factor in the new show...
I hope not. As I keep saying, Bellisario's goal with QL was to avoid the usual time-travel cliches and do a different kind of show, one about everyday people in the past rather than the big-ticket historical events. I hope the new show resists the pressure to go the conventional route and do big
Timeless-style conspiracy plots. I get that they want to have a present-day arc, but the primary focus should be on Ben helping individuals in the past. Let the mystery arc be something more personal, about why Ben and Al's daughter are doing this, or about what Sam Beckett's influence has been, or something like that.
Do you people think that "God" or whatever will be a factor in the new show?
Well, it was very downplayed in the original show, hinted at but never more than that. I think people in this thread are dwelling on it more than the show itself did. Bellisario did like to hint at religious themes in his shows, but I don't think he's heavily involved in this show, since he retired in 2007 and is probably in more of a consultant capacity at most. And given current politics, it might be safer for a TV series to avoid wading into religious waters.