Yesterday Forgeworld revealed two new weapons coming. The first is for the Leviathan Dreadnought, and of course the second, well.... not much is bigger than Ordinatus
This is from yesterday, and I had been meaning to get to it. So if you haven't yet seen them, here they are.
via the Forgeworld Bulletin
https://www.forgeworld.co.uk/en-US/
The Cyclonic Melta Lance is a new weapon for the Leviathan Dreadnought that’ll be causing havoc on the battlefield soon. It’s a supercharged multi-melta that fires in bursts that will annihilate even the heaviest armour plating.
This immense war machine is carrying a gun bigger than most Titan weapons!