Is anyone building hospitals for Covid-19 patients before the wave hits?

The "wave" may already be much further than expected in many places, since about 80-90% go unnoticed due to their mild form[0]. But this would actually be a good thing, as it would mean that:

* Mortality rate is way lower than currently estimated

* On average/median, cases are less sever than anticipated, meaning a much lower percentage of people will have to get hospitalized when infected, reducing the capacity burden

[0]: https://www.nytimes.com/2020/03/16/health/coronavirus-statis...