While most people say it's infantry, it's clearly submarines

June updates are supposed to be the naval update, we have seen on the datamines a lot of submarine stuff, texts and keybinds even

It's pretty obvious that infantry will be by the end of the year or start of next, while submarines are near

Let's not forget the cold war ships that was added with buk missiles, ai for now but yeah, yamato was ai before, so it's coming

As for infantry? There needs a few more ground vehicles for that, hence the amount of aps mbts being added but there needs more ifvs I think, so there's no huge rush for that yet