Quite frankly, I thought you've got the WPML issues fixed and we're gonna have WPML working with headers/footers in the next release. Turns out you're still exploring solutions.
I believe that you should've thought about WPML before building your new headers/footers builders, it's a game changer for most of us and people already started looking at other themes/builders. I wish you were open with us before releasing PRO that it's not gonna work with WPML, now I'm stuck and I don't see you're fixing that soon.
That being said, I vote for the idea1 since it sounds like the best solution for now only if you're not gonna change things in the future that'll make the WPML stop working again, please be open with your customers, we want to help you if you help us.
Again, does that mean you're not fixing the headers/footers translation issue with the upcoming release? or do you think you can develop one of these ideas you mentioned and make it work in the upcoming release?
what does that mean? does it mean that the content builder works well with WPML now or is this a temporary fix?