Is this one going to be for the rogues?

You can fire a lot more arrows a minute than you can early guns. I could see it being like bows vs crossbows in DAO, where one is faster but less damage and the other slower but more damage. As for dual knives, considering soldiers today still train in and carry knives I don’t see them being outpaced.
Plus for all we know we don’t get guns, but only that character does like Varric with crossbows in DA2/I

It is something that is a big ? for me on how this will be handled. It looks like this is indeed going to be the case that the game will focus on more espionage elements I do wonder how this will effect warriors and mages who aren't typically known for stealth and sabotage.

Though to this point I think from a marketing standpoint we already kind of have our answer. We have been seeing A. a fair bit of characters who give off the air of belonging to one of the classes, our lady mage recently revealed, warriors both in what is probably the Anderfels and the DA artwork of the three characters, rogues like the guy sipping whine on Antiva, the bow hunter in the forest, and the guy pursuing that one guy on the streets of minrathous....yes such precice descriptions. But I really cannot help but think they are giving us a fair balance of all three classes to this point.

As far as I know, gunpowder is a Qunari invention, and the means to make it is one of their most heavily guarded secrets. And they use it for cannons and explosives, not guns. The rest of Thedas by comparison have only just recently gotten a repeating crossbow, and Varric all but confirmed he doesn't want them to be mass produced due to how it would revolutionize conflict. So guns a little ways off from them unless they decipher techniques from or steal recipes from the qunari. And we all know how iron-clad they are when it comes to giving potential enemies an edge.

That said, having one companion using that tech may be a possibility if they have Varric-like connections or got lucky and stole a qunari prototype. But I wouldn't expect a 'gunslinger class'. Even if the powers that be did steal the tech from the qunari, I can't see how the development and use of guns would be that widespread.

Talking about what class and armor style will be used primarily in marketing and for cover art. Not whether or not we get a hold of some gatlock.

Or they could bring back switchaable weapon sets and we could be both!