Translation:You are coming to see me tomorrow? That's great!
This sentence has quite many translations with a declararive sentence structure. It, indeed, can be used, when you are trying to express surprise or excitement, but it's quite annoying to have a question corrected to a declarative sentence with a question mark in the end.
This is a rhetorical question coupled with a statement: https://en.m.wikipedia.org/wiki/Rhetorical_question