I think they would only leave hardware if the losses on the hardware where pulling EVERY other part of the company down like SonyColumbia profits where down considerably due to PS3/4/5/6 costing that much to keep afloat they have to feed it with money from the rest of the company.
This has about a 1billion:1 chance in happening.
End of 2014 Hardware Predictions (03/03/14)
PlayStation 4: 12-15million
Xbox One: 7-10 million
Wii U: 8-9 million (Changed 01/04/2014 from 7-9 --> 8-9 million)