The success and failure of this lens will largely depend on the pricing.
There's already the very capable 45mm f1.8 from Oly which is decently priced, with good IQ, fast AF and lightweight.
This nocticron must beat the oly hands down if it wants to charge a premium for it.
my guess is the price is around the same with 25mm f1.4, then I think the price is consider reasonable.