For the ones who don't know what the E3 is, is an event for the video game industry where companies like Sony, Microsoft and Nintendo announce their upcoming releases like new consoles and games, and usually it lasts a week and players are usually really hyped about it.
I think it would be really cool to also have something like that in K-pop, imagine a week where the big companies make conferences to announce new comebacks, groups, content...
Imagine YG doing a conference and showing a concept trailer about the new BB comeback, same for BP and ending the conference with "one more thing" and then they show the new GG.