I'm skeptical. Ballistics look great until you factor in actual barrel length. A lot of assumptions are being made about velocity from AR carbine and SPR length barrels while the actual specs are using longer 24" tubes. I was looking hard at the .22 Nosler until I realized that from a 24" barrel I can get the same velocities by simply chambering in 5.56NATO and loading accordingly. As far as reloading, Hodgdon has data in their 2018 book and online, it's not impressive versus the 5.56.
Something tells me that once we get more shooter data the Valk's going to be a ballistic twin to the .22PPC, a round you've been able to put in an upper since the first 7.62X39 AR hit the shelves.