Apex legends 3v3

I watch apex legends streams and I like it even that Iam not good at BR games , but what I noticed its 3v3 and has a small heroes pool , so it gave me the vainglory feelings before 5v5 , so is this going to be a neglected mode and we going to see apex legends remove the 3v3 mode in their update 4.0 , or are they going to stick to the 3v3 .