As I am fan of Salesforce Administration tools and engines, so it's not easy to predict the administration side of Salesforce.
I think in 2018, Salesforce will add more features in Lightning Automation tools like Process Builders, FLOWS and Analytics.
Soon in Salesforce, Einstein will have the feature of face recognition.
Salesforce is one of the most innovative companies in the world, so they will keep on making their AI- Einstein & IoT more stronger and advanced in 2018.
Process Builder is a workflow tool of Salesforce, enabling anyone in a company to automate business process (employee onboarding, new customer onboarding, etc.) in an exceptionally quick and easy way.
FLOWS - an application of Salesforce that can execute logic, interact with Salesforce database, collect users data, letting you automate business processes by building flows and distributing them to the right users or systems.
Analytics - Salesforce Analytics Cloud (Salesforce Wave Analytics) is a business intelligence platform from Salesforce, allowing you to optimize for mobile access and data visualization.