I knew that there won't be others until the end of 2019 ... I don't know ... Maybe you were referring to 2020?
Babolast said that a staining SP. 2020 is similar to the one that Shapovalov wore in Cincinnati and W. Salem (V. other thread)
The shoes that Kachanov is wearing looks like the ones that Kyle Edmund was wearing (all white version) in that pic with Tim Henman from earlier in the year. Now Edmund looks like he's wearing yet a different, new shoe. He posted a pic of them on his Instagram.
*edit* I take it back. It does seem to have design elements of the Zoom Zero. Khachanov's IG has a pic of him holding it... and I think they look ZZ-ish now because of the lateral design elements of the outsole. But the outsole is thinner compared to the current ZZ. But there's no cage overlay, either... I'm guessing Garcia's, Edmund's and Khachanov's shoes are the next gen ZZ.
Kyle Edmund of Great Britain practices with his coach, Mark Hilton and physio, Ian Prangley, before the start of the US Open at the USTA Billie Jean King National Tennis Center on August 21, 2019 in...
It seems to me a little different from the one Nadal wore some time ago and that will enter the market next year ... I have no other information about it