IDC Reveals Worldwide Security Predictions for 2015 (TMCnet)
Some excerpts:
2. Biometric Identification - Mobile devices have biometric capabilities and in 2015 we expect that 15% of those devices will be accessed biometrically, and that number will grow to 50% by 2020.
5. Security SaaS - Enterprises will be utilizing security software as a service (SaaS) in a greater share of their securiy spending. By the end of 2015, 15% of all security will be delivered via SaaS or be hosted and by 2018 over 33% will be.
6. User Management - By 2016, multi-factor authentication will be the primary method of access control used by 20% of enterprises for highly privileged or otherwise sensitive accounts.
There's a lot more good information at the link.