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.

There are plenty of 400+ cubic inch small block mopars that will never hit a track and could use a head like this. Look at all the big port small block chevy heads sold, they surely arent being used at the track only. Lots of folks are happy to run a factory block 600+ hp, especially in a mostly street configuration. Indy heads are great, but competition is a good thing.