Maybe even more gore, like limbs falling off and such.

Indeed,Space Marine's quantity of blood is alright with me.
Should the devs have a different level of bloodshed in mind,
a 40K game needs gore,but i don't want to bleed 3 liters of blood for breaking a nail.
So,have plenty of it,but don't over do it.

Maybe they could have an on/off option for gore.
I think Space Marine had it, but I'm not too sure.

I loved how your armor would get blood splatter on Space Marine. It would be pretty epic if you were in some close combat and came out drenched in blood afterwards like that on SM. Not sure if thats really doable or not but that would be sexy.

World at war was pretty brutal at times......

This game need to be a MA15+ or grater.

"There is only war in the grim future of the 40 millennia"

When I hit a Space marine with my Fusion Blaster there had better be a large hole in his chest cavity so that I can see the guardsmen cowering behind him or i'll be disappointed.

Didn't the devs confirm Mature 17+ ?

Khorne involved and no gore? I can´t see that

No it won't, cause Tau are not a playable race at start.