'Substantial user experience' refers also to hardware; temperature, stability, possible overclock on current hardware (etc). My main point is that it would be strange if Bkk would release a board that could be substantially improved (to a stable v2 board) within 2 weeks, I trust him to strike a good balance between quick release and 'maturity' (being overclockability). Maybe this boundary is around 2 weeks?
Personally I think that the IR3847MTRPBF (suggested replacement regulator) may be be a non-starter as quantities are essentially zero (okay 25) from what I can see. It might be more feasible to simply drop two of the existing IR3895 parts down and have one drive 8 chips each? I'm sure Bkk will come up with something.
EDIT: two more regulators and peripheral parts would be required, in addition to the two which are already present. Each would drive a bank of 4 ICs each.
Spacing would be tight - but likely quite possible.