Hello dude
Your post reminds me of a book I've recently read. It's called "get it real".
Anyway. I'm not much against the idea of changing the name if we ship the game on Steam one day.
Yet, I have no clue for a more catchy name. Any suggestions?
Unfortunately no, I don't have any suggestions, I'm really bad at such things

But I think the name should at least be in English, something straight-to-the-point, something that if you read it then you'll have a pretty good idea of what this mod is about. If you're good at Latin then it's fine, but I for example had to google it to see what this phrase "Casus Belli" even means

EDIT: "Armed Conflict" maybe? Or "Escalation of War"
HUm we communicate with Casus Belli since 3 years, i don't think changing name some weeks before the release is a good idea.
Yes, that's true. But
if you are having second thoughts about it then now is the last chance to do it.
And it may very well be that it's just me that finds this name a bit odd. Maybe it's the opposite and it catches people's eyes when you release the 1.0 version. It was just my own opinion