In reply to benjaminlupu.

I recommend taking a look at https://core.trac.wordpress.org/ticket/9864 to see if you can contribute anything there whether it be discussion or improve the patch. Alternatively, I'd visit https://make.wordpress.org/core/2014/10/10/scalable-dropdowns-update/ and tell Helen the same thing you told me. She'd be able to give you insight. At the very least, that's where you'll be able to get involved in the conversation surrounding the topic.