Having pondered, I’ve decided to change the title of book 2 to Gateway of the Saviours (previously it was scheduled to be Children of a Dying Sun). Book 3 is then likely to be Legacy of the Saviours. Brings it all in line with book 1, of course, Empire of the Saviours. Sensible? Scream if you think otherwise.
There has been a chat with the publisher to change the title of the series from Chronicles of a Cosmic Warlord. But I became impassioned and the title is staying as is.