When Will We Get An Update On Visual Reworks?

Simple question. Been reading from certain Riot members that the art team is working hard to get the VU's going we can tell that they have delayed a lot of them this year due to other factors like gameplay and completely re-imagining champions like Poppy so I'm wondering when we will get an official Dev Corner post or website article that gives us details just on where they are on the visual updates as there are so many champions in line for a make over.