I've had this conversation with others before, gonna have it with you as well. We keep the titled shortned to Super Smash Bros. 4 as its the semi-official shortened version used when refering to both titles at once. Leaving it as just that makes it easier to type out, and easier to find for those browsing the Wiki. Since this is the second time someone has gone and tried to over complicate things, I've placed both SSB4 related articles, both the main page and its gallery, under admin protection. It'll stay like this till it is determined it wont be changed again.
also the previously re-named pages have been turned into re-directs and have been put under admin-only edits indefinitely to prevent it from happening a third time.