Cardinal, white, black, and chrome (though we haven't seen that since 2019 in think)
Yeah I dont think we can count chrome as a current helmet, unless we see it again it has been years now since they have worn it, and it is not shown as part of the current set.
At this point we have 3 helmets, any chance there is a 4th means it could be anything of any color or variant. They could have just as easily replaced the chrome red this year with something else, or just not purchased new helmets for that look staying with 3.
It could still be there, but it might not be. There might be something else. Or their might not be. That 4th lid is not been published whether it exists still and what it is.
Personally I would like to see it replaced with chrome Gold, since we dont have a gold lid, and we have a cardinal one, why not give us a chrome gold, best of both worlds.