Not too knowlegeable about this but heard from someone who is way better at code than I, that the chances of this thing getting re-implemented due to complexity is slim. Probably possible but a lot of work for a fairly gimmicky function. I mean it would be neat none the less, but until someone wants to invest a huge amount of time I'd imagine we ain't getting this back any time soon. - Could entirely be incorrect here as I was told this a while ago.
These will not be fixed, I'm pretty certain on that. Alex lacks the time and I lack the desire to do it. The community lacks any other people capable of doing it.