At the very least they'll be scaling down and outsourcing manufacturing.
Hitachi has been in the TV business for a long time, but that may end up changing soon. The company is considering what to do about its lacking sales and two options are being considered: outsourcing, or closing its doors.
Hitachi isn't the first name people think of when discussing high quality TVs and, to be honest, it's probably not the second or third either. That reputation, or the lack of a reputation, probably hasn't helped Hitachi stay in business.
The other thing that may end up driving the company out of the TV business it's been in for 55 years is competition. Specifically, competition from Korean manufacturers like LG and Samsung. Their low costs allow them to price TVs low and keep profits high.