I would be really surprised if this was a success.
The logic here is well battle royale games are popular, therefore lets make a vampire themed one.
The first problem, they're late to the game. There are already well established battle royale games with their own fanbase out there. Why play a poor copy if you can play the original ? This is really the same problem as with the many WoW clones back when MMORPGs have been popular.
The second problem, this game isnt sufficiently different from regular battle royale games. So even if they manage to make the game as polished as established titles, there isnt really much of a motive to switch. Its only a slight change.
The third problem is the many lore problems. Why are guns suddenly so effective against vampires. A Gangrel/Ventrue with Fortitude and good armor is supposed to be basically immune to them. Why are there only three clans, each with only three abilities, and with names that dont refer to anything established. Why do the human authorities and vampire hunters not react to this massive break of the masquerade.
All that might not mean much to the regular battle royale fans. But anyone who is into fantasy will probably object.
I think it would have been much better if they would have changed the recipe of battle royale around much more.
For example there could be more clans, with names closer to tradition, also probably more special abilities. Maybe different amounts of special abilities - a Tremere might have 10, a Brujah just 3.
And/or maybe guns would be present, but less effective, especially against Gangrel and Ventrue; thus melee should be dominant.
Instead of fighting in the open, one could fight in sewers, with only the occasional sewer worker as snacks. Or in a cave system, with an occasional miner. Maybe there could also be some lost city, like Tshernobyl, with only few highly radiation protected humans present.
Maps and map placement of the players could be random generated.
What I've seen however is very close to the usual stuff. Except you suck blood occasionally and get three abilities and theres some special ways you can see better than usually. But otherwise, really not that different.