Yeah I think it's highly likely there will be companies that compete with Bitmain at some point. Things are going to get really interesting as tensions continue to build between the US and China.

There are more and more attempts to make miners in the US, and I think someone will be able to do it right.

In order for them to be able to compete, they will need to produce at a similar if not lower cost, make quality hardware, and be able to produce machines at a similar efficiency.

I don't consider a manufacturer real until they start actually shipping machines, so I'm skeptical of newer manufacturers, but I have hope that at least one of them will be able to be competitive in the next 4 years.