There's another patch 4 hotfix being worked on, apparently, which is not good news for patch 5. If the latter was near release, I assume they'd just be rolling the former into it.
Also, given that Larian didn't even start to tease about the fifth patch, we must be at least weeks away from its release.
Party control in Baldur's Gate 3 is a complete mess that begs to be addressed. SAY NO TO THE TOILET CHAIN