Maybe an other head producer in the game.

I will be surprised if he decides to do a new head.
With the popularity of gen 3 stuff, and the majority of small block guys using factory blocks, can’t say as I really see a market.
Brett has a handle on the W8/ 9 stuff, you have Indy heads, and now several new choices in standard configuration heads.
Not a binch of a lot left to fall between the cracks.
Go to these big Mopar only race events( and I do) the catering to the gen 3 crowd is astounding.
And the heads up fields are very lacking in high end go fast cars.

He was already started on the head. Some business stuff happened and he set it back a bit. The Hemi isn’t what people think it is, just like the LS.