Marvel Won't Reveal The Title For AVENGERS 4 Because It's a Spoiler

When Marvel first announced the next two Avengers films they were titled Avengers: Infinity War Part I and Avengers: Infinity War Part II. It was later announced that the first film would be called Avengers: Infinity War and that its sequel was untitled. 

They do have a title for Avengers 4, but it's a title they can't reveal until after Avengers: Infinity War is released because it would apparently spoil the movie. During an interview with Cinemablend, Marvel Studios president was asked if the reason behind the titles secrecy was because it's a spoiler, and he replied: 

"Yeah, for sure."

We know that the whole Marvel Cinematic Universe is going to change after these two Avengers films. Feige previously said it's going to be very different and that it'll probably bring an end to the way they've been doing their "phase" films. 

When asked if Thanos would play a part in both Avengers films, or if his story would come to an end after Infinity War, Feige said:

"They're two very different movies. That's all I'll say."

Marvel is obviously looking to radically change things up in the MCU. I have no idea what to expect, but I'm still excited about the future of these Marvel films and I can't wait to see what all this talk of being different is going to entail. 

What do you think Marvel could be planning?