It seems even more likely than before! I wonder what else could be built by B&M. Maybe SW9 or the next ride at Heidi Park, who knows. B&M really do seem to be trying to break into the family market. Also if that is the family invert coaster maybe Merlin have bought more I think one would be great at Alton Towers in a Katanga canyon retheme.Following the CWoA project, this line-up would definitely suggest that Merlin have struck a deal with B&M for a new range of coasters.
Ah, apologies; roomraider on CoasterForce had the additional info in this post here, as well as some new concept art: https://coasterforce.com/forums/threads/legoland-sichuan-china-2-theme-parks-1-water-park.44969/@Matt N where are you seeing that detail ? Your link goes to the 2019 press release.