/u/JagexPips any follow up man? Those sounded quite interesting, specially the dissidia one (as that's where i took inspiration for my username).
These were games being made by Jagex’s former owners Fukong Interactive for the Chinese market. They were in early development at the time of that video.
The games actually looked good but Fukong had financial challenges (well documented). Long story short, we don’t have a relationship with them anymore and they don’t have the rights to make RuneScape games.