That's odd. I was under the impression missile weapons were not going to happen.

How would they make a Dark Reaper without missile weapons?

I dunno. But they aren't going to put in the space marine missile launcher and that's one of the more common weapon choices, or it was back in my day.

I see your point, but I do not think they will leave out the only weapon a Dark Reaper can carry without being an exarch
The SM Missile Launcher will probably arrive at some point.

I kind of doubt they're going to make the Heavy Shuriken cannon exarch only.

They have been allow to give the Eldar the option to use Exarch weapons without being Exarchs, but hopefully that doesn't mean they will ignore the fact that the Dark Reaper "traditionally" uses the Reaper Launcher.

Anyhow, we can't really end this before we actually see it ingame or the Devs tells us

A Reaper w/o a Reaper missile launcher is like a Marine w/o a Bolter. not going to happen. I doubt GW would allow it even if bE went full retard.

I'm sorry, I can't source it, but I remember (recently) the devs talking about making the reaper missile launcher with two modes, one direct fire (like the heavy bolter) and one arced fire (like the plasma charge shot) for anti-cover. I don't know if they'll be separate or just different fire modes.
Also reaper launchers shoot a stream of little missiles, so it is more comparable to the heavy bolter than the SM missile launcher (and with the direct fire mode really encroaches on the shuriken cannon, so we'll see). I will try to source this.

Reaper Launcher is DR sacred weapon. If it was not to be on the game, the Dark Reapers should not be also. Its like playing scorpion without chainsword or direavenger without catapult.

they have dark reaper with different missile tipes