The trend of working from home- as telecommuter or freelancer- is definitely on an upswing despite large companies including yahoo, bank of america, and ibm among others having recalled their employees back to workplace. Indeed, working from home does pose major challenges to employers.
Productivity of an employee spirals downwards- which was observed by some top employers. There are no ways to determine how many hours an employee has spent on working from home since the system permits flexible hours. Yet, data from various sources clearly indicates that working from home is a trend that will grow in future.