How do?
Working on the basis of 'ask, and ye shall receive' I posited a question to Forgeworld about when we might see Warscrolls to cover the various and sundry nasties found in Monstrous Arcanum.
And I've attached a screen shot of their response.
To temper any excitement, I'm reading their response as being rules for their models are coming, rather than ones to cover everything in the book (so likely no big Scarab or Undead Gribbly Giant Ship Thing With A Vampire For A Head)
EDIT
I've followed this relative success up with a question as to whether we'll see 'missing' kits return to sale. Like the Idol of Gork (or possibly Mork) and Elemental of Fire...