In my own opinion in the future, all networks are established. What matters is on how to secure your network. This is a very crucial job for network administrators. UTM firewalls will help but you should know how to use and configure it well. Check out McAfee firewall, quoted as next generation firewall.
Both are going to stay for long. Networking for Cloud Computing.
A vendor’s marketing department will coin a new term to distinguish their product(s) from other vendors. This term will become the “next big thing.”