Thanks to Brendan Phoenix for the heads up. Zzap 64 in October 1986 had a small news snippet about Scarabaeus 2 coming soon from Ariolasoft.
Apparently the Zzap team had seen something of the game and thought it was very good. Coded by the same Andromeda team as the original game.
So certainly, this sounds a lot more than just basic vapourware and there could well be something out there of a sequel to save.
Do you know anything more?
Contributions: Brendan Phoenix