My guess is that demand for hard drives less than 3TB+ is going to dry up and production will end. There isn't much point in small hard drives any more; at the same price people would rather cope with less flash storage than more HDD.
Agree. On the other hand there should be a long term appetite from large capacity hard drive from datacentres. The flow of data being captured isn’t reducing.
Not sure about that. Tape drives have always been better for long term storage.