Nice idea for a Mod, but i'm holding off on it for the moment... It might be silly, but i don't like the leaders you've selected. I understand the instinct to use Prime Ministers (and the Governor General), but i think more exciting Canadian icons could have been used instead.
Champlain and Louis Riel come to mind immediately, because they'd be fun to play, and have had huge impacts on Canadian history. I realize that neither man were actual Canadians, exactly, and that strong academic arguments could be made against their having had larger impacts on the course of Canadian history than, say Pearson or King, but they're still heroic icons in Canada's past, and for me, that's what i'm looking for when i play video games
I know it's rude to criticize your design when i haven't taken the time to try it for myself, but i thought i might share my thoughts. Hope they're somewhat interesting, for whatever they're worth!
Also, while i'm typing, great idea using Inuksuks! Maybe even go a step further, and let "Bronze Age Canada" use Sitting Bull's UU, or just the model or something similar, to play up Canada's Native heritage?
Fenian Brotherhood Barbarian raids? ;P The Avro Arrow is also awesome. Tommy Douglas as a Great Person, or a National Project that increases Health in every city?
A Quest that forces players to construct special dual-language universities/courts/hospitals, but with a nice cultural reward?
Maybe players could have the option of selecting simple static historic portraits of their leaders, rather than the remade moving animations of world-leaders, for those who would be distracted by the 3D image of Trudeau in a breastplate, with Caeser's crown around his ears....
If i'm just repeating ideas or points smarter people have made earlier in this thread, i apologize, i didn't read it through all the way. But let me end with: sorry if i seem to be criticizing! I think it's great we've got patriots who will make this kind of effort, for other Canadians' entertainment!