I don't agree that the Blaze event should go down, but I absolutely agree that events from 2014 and all that junk should go away. My reasoning for keeping the blaze event on there would be to showcase what our last event was and the items people were getting. Keeping patch updates from last year makes it look like nothing has happened on the server.
Clans and Conquest S3 --> "Keep up with the latest patch notes to see what's new!" (links to patch sub-forum, maybe a picture of T2 skills or something) --> Blaze event --> "Show your support by remembering to vote!" --> Possibly the adventure map preview thread?
Less is more, in this case.
Keep the eye on the eventful, the now, and the future.