X, f/k/a

It is like it is a rock star, "X formerly known as Twitter." 

X demands a dressing room with champagne and boxes of Hostess cupcakes.

X is seen escorting Y, formerly known as Q, to the hottest club in the city.

X is taking a break from touring and will rest in a $10,000 a night "hotel" for 30 to 60 days

or better yet, a sports star

X turns down 6 year 2 billion dollar offer, stating it wants to feel appreciated and it is not about the money

X refuses to play more than Aaron Rodgers did this season

X hosts Saturday Night Live while in the middle of a game

or even a politician

X declares it is not a member of any party except a party of one

X says the Constitution is its Bible but refuses to quote its favorite passage

X states it is not running for office but walking at its own pace

Maybe it should just be renamed "X marks the spot"

or 

Maybe "X, subject to change"

or 

Maybe just “the end of the world as we know it”