The MF03 is not time sensitive so it had to be put aside temporarily to get the MF04 and MF04S to market (to compete with Lumintop). They will start up the MF03 project later on.
For right now I think Sofirn wants to do a single emitter light.
Later on they can do just like they did with the C8 to C8F. They can machine the head with a taller shelf, run 3 emitters and make a triple reflector. We know the 3” head on the L6/S70s lights can support this. Just look at the Haikelite MT09R. It has a 3” head and it can do 20,000 lumen! You won’t get the same power from 2 x 26650, but I could still see it easily doing 15k lumen. (A pair of 30T cells, if they fit, might get 20k lumen)
I really like the idea of a MT09R head using a 2 x 26650 battery tube. No one has done this. The old BTU Super Shocker was a bit bigger in diameter and only had a tail switch. I think Sofirn could do it, but later on as it would cost quite a bit more money.