seems to me that Diego Luna is playing Kyle Katarn from Dark Force, or at least a new character that's inspired by Katarn based on Luna's look in the trailer
There are some interesting parallels.
Also he's teamed up with
"Rebel working undercover as a double agent in the Empire Jan Ors" Jyn Erso.
Jyn is rumored to have ties to the Empire as her father[Mads Mikkelsen] is the scientist connected to the DS plans.
If anything Jyn seems more like the Kyle role.
From the Dark Forces opening crawl:
...to acquire the plans to the deadly space station, the Rebels have employed the skills of Kyle Katarn Jyn Erso known to most as a mercenary for hire, Katarn Jyn is a rogue figure who has a partial alliance with the Rebels.
Armed only with a blaster pistol and an intimate knowledge of Imperial methods, Kyle Jyn prepares to infiltrate the Imperial base where the plans are kept…
But do they even look that alike?
The characters have a tangential similarity because they both exploit the
same pre-ANH setup;
The Rebels stealing the DS plans of the opening crawl.
That doesn't' mean he [or she] "is playing Kyle Katarn" or even "inspired by him".
He won't be a force user getting a lightsaber like Katarn, which was a major part of his arc, this is nothing like that.
He's appropriately meant to invoke the right look and role of the rebels of the time of stealing the plans, and he does.
That's it.
First we had it must be Biggs, now it's Katarn. Why can't he just be his own character Cassien, Rebel Captain, and Rogue .
That said, seeing a nod to the Crow or Raven-Claw would be...