Not according to this help article linked below (click on the green arrow next to what devices are supported on a NowTV Boost Pass to expand the on screen information).
No idea when the Xbox One will get the Boost upgrade apart from coming soon.
NowTV have never been forthcoming giving release dates.
Cheapest place that i can find at the moment is B&M (though i don't know what stock levels are like if you have a B&M Store close to where you live).
The two deals that seem attractive to me is the Stick plus one month Sports Pass or the NowTV 4K Smart Box which are difficult to find nowadays and IMO the 4K Smart Box is better than the Stick from my testing on both devices.