Speculation : Hot Toys "The Mandalorian" Figures
Certainly shows better promise than anything Disney has done so far.
But why another Boba Fett?
Have you watched Rebels or the Clone Wars ?
There's a whole Mandolorian history which Dave Filoni has established. This guy is a lone Mandolorian.
Sure he looks like Boba Fett, but so do all Mandolorians. It also helps with the marketing cause that look is recognisable to the casual viewer.
It could just as likely deal with him and the Star Wars underground. Picture how the SW universe could look like in the power vacuum after ROTJ with no Emperor/Vader and no Empire. No doubt the gangster mob (Hutts ?) would make their move ??
Maybe this guy is like a hit man for them ? Who knows.
But considering they had good success with Rogue One and it's "used universe" look. And they're using the R1 cinematographer, then I'd say it'll focus more on the underground scene in the outer rim and all the potential SW aliens we've already seen there.
One final point which I think is also very interesting is the fact that Jedi Luke in his prime is also kicking around in the universe. (Ie before TLJ hermit crap). Imagine showing Luke lighting up his green lightsaber at the end of Season 1. Then having him in Season 2 as a parallel story (searching for Jedi artefacts) which is shown from time to time next to the main story. Like the White Walker's or Dragons in GoT.
We've all seen the pictures of Sebastian Stan. And with Faverau Marvel connections.....
It's a real chance to see bad ass Luke in his prime. But no doubt many won't want to see another actor to play Luke.....
So that turned into a longer response than I anticipated but hope you can see the potential a bit more.