Do you know that Oracle Database 11.2 will run out of PREMIER SUPPORT in less than 11 months?
Well. you may mention now the waived first year of free EXTENDED SUPPORT but this will apply to Oracle Database 11.2.0.4 only!!! Yes, just to 11.2.0.4 only. Now if you think of upgrading to Oracle 11.2.0.4 within the next months start thinking more into the direction of Oracle Database 12c instead. There won't be much difference in efforts and the amount of time you'll spend, regardless if you'd like to Oracle Database 11.2.0.4 or Oracle Database 12c.
Don't waste your time, resources and money - start evaluation Oracle Database 12c today!!!