That's the entire point of trailers. To manipulate scenes in ways that make even shit movies look good.
Once upon a time, everyone saw the Phantom Menace trailer and thought it looked like an awesome movie...
...and then we saw the actual movie.
I do. Mostly because the combination of a) an action hero lead that looks like a great-grandpa, b) constantly pushing the setting forward in time to justify him to the point where it completely breaks the entire genre the films are supposed to be rooted in, and c) Disney creative in general being a massive clusterfuck these days means that I can't imagine any scenario where this film is going to turn out to be even remotely watchable, let along good.
Honestly, at this point they'd be better off recasting Indy so they can go back and do stories in the 30s (or earlier, like the Young Indy series did). Sure, people would complain that it's not Harrison Ford (see also Solo), but the alternative is that people are going to complain about how old he is and how bad the movie is, so it's pretty much a no-win scenario regardless.
If Hollywood wasn't so obsessed with cannibalizing and corpse-fucking every successful franchise of the past, I'd say they'd almost be better off letting the brand name die entirely and just tell similar stories with different characters (I may be one of like 3 people on Earth who would have been absolutely fine if they'd eventually segued to Mutt being the new lead, but I mean more along the lines of how Tomb Raider and Uncharted are basically channeling the spirit of Indy without having to explicitly BE Indy).
I know there'll be people who'll go see it no matter what just because of their nostalgia for what the franchise used to be, but there's absolutely going to be a law of diminishing returns here and I think we've long since hit it in this case.
About the only positive I can see is that they finally pried the writing out of George Lucas' insane grip, but that didn't necessarily work out well for the Star Wars movies, so it's no guarantee of anything good here either.