The ILF idea seems to make sense, but... that just doesn't seem very "Black Widow" to me. Their prowess is in fast shooting, no-stack, high-quality bows. I personally don't see them making an ILF riser and sticking it on the selling block. Then again, ILF-compatible limbs and riser... maybe?
If I were a betting man, I'd put my chips on it being a 3-piece longbow or LB limbs for their risers. That's what a lot of people have been asking them for, and there are already a pile of BW loyalists who would be looking to place orders for such. I would be intrigued by a 3-piece PL longbow, but then again, is there much gain in having a 3-piece when I've already got a 2-piece? Hmmm.