i live just west of calgary, i can't count how many times i have been to the mountains.
If the lenses you have now work for you in England, they will work well here as well. Ultra wides work well for landscapes no matter where you are.
It is very hard to capture the true beauty and size of the mountains in photo's.
The 100- 400 will be perfect for wildlife.
the 28 - 80 will be fine for landscapes
If you really have the desire to buy a new lens, it's hard to go wrong with the 10-22.
A macro is great for the wild flowers as well. Although by August you will have missed the peak for flowers.
But if you are on your honeymoon, i think you may find better things to do than take photographs. : )
if you are renting a car and driving, I can help you plan the most scenic route, Your plan so far looks very good, calgary banff lake louise, jasper, then across to vancouver.
10 days will not be enough, but I am sure you know that.
congrats on your upcoming wedding. hope you have many happy years together
message me if you have any questions about western canada, or if you need any help when you get here. (really!)