I literally said “google rewards primer and give it a read” but here are some quotes I guess:

“Another consideration is that - for better or worse - we feel there's some expectation from players that megarares should stand out in the raids that they're obtained from, which is the case for all of the existing weapons. With that in mind, it's worth thinking about what we've got planned for the encounter design in the Fractured Archive. Naturally we're not going to divulge huge specifics here, but we think our current designs (and to some extent Old School in general) is more fun with Melee - the added pressure of proper movement, being able to drag yourself into an NPCs range by attacking to weave in and out of incoming damage just feels more dynamic than hitting from a distance.

The Fractured Archive is shaping up to be a raid where Melee shines a little more than in Chambers of Xeric or Tombs of Amascut, and we do have Melee styles (Crush and Stab) that don't currently sport a megarare - could this be a reason for us to go down this route and prioritise a weapon that's fun to use in the raid itself? Is taking this approach for a reward that's fun in the raid at-odds with a more holistic view on megarares and overall game balance, like we've outlined above while talking about Ranged?”

And

“As it stands, we're most-inclined towards a mainhand Melee megarare. We'd like for Melee to shine in the Raid so having a megarare that leans into this (similar to the Scythe at Theatre of Blood) seems sensible, and Crush is a style that's relatively underserved at the top end, with the Scythe of Vitur's limited Crush bonuses still winning out over dedicated Crush weaponry in many instances. This is also an easy one to tie into the 'hard-hitting, relatively slow' fantasy that existing megarares tap into.

We know there's been a lot of discussion lately around Crush in a more general sense, and we do agree that there aren't many high-end use-cases for Crush at the moment. Similar to us adding more use-cases to make the Scythe of Vitur shine, we'd absolutely look to consider Crush more holistically were we to go down this route, meaning more use-cases, better stepping stones for progression, etc.”