Interesting. Reading the blurbs offered on the GW site today and noticed this little nugget on the Eviscerator:
There are new weapons in the box, too, such as the eviscerator wielded by this Sergeant. It’s not just a weapon for officers, though – any Space Marine in the squad can carry this tank-shredding blade.
Tank-shredding, you say? I'm gunna guess a Strength bonus, maybe S+2, and Rending. Two-Handed, Unwieldy for sure.