Right now HMI 115 is just a monoclonal antibody, with all its drawbacks. However, if it sees the market, it is not going to be in such a form, but more likely as a mRNA serum. mRNA has experienced a boost in development "thanks" to Covid-19, and is viable to produce not only antigenic proteins but also it should be able to produce complex antibodies.
This would be a logical step for commercialization, as reducing costs and increasing the market are two variables that are not related linearly. Meaning, at a cost of 20k$ (as estimated by pegasus2), decreasing it to 5k$ (1/4), the demand would not increase by 300%, but maybe to 3000%. Yet it's all logical speculation and the trials in the US and Australia should prove positive results before thinking about putting it into the market.