I am wondering if there's a huge probability of bitcoin investing will become a company's focus. Like making a company that specializes investing of bitcoins
Any thoughts?

Since the market is very unpredictable, it would be difficult to operate a business focusing on investing only with bitcoin. The promising market of bitcoin could not be questioned; however, since the market and the bitcoin itself are very volatile then perhaps the meaning of investing and making a business would take the way to a loss. The matter of investing is perhaps the bottom line for holding and not as trading.
Another thing, if we consider a business to invest in bitcoin as a means of trading days, the market could be predicted; but sometimes we commit mistakes which obviously led to losing again. We would not sustain our business if we would continually be incurred loss. And, perhaps, leave bitcoin trading and focus on much more anticipating business.