Upstream integration of debian diffs?

Hi, the upstream author of one of the packages I maintain offered me to integrate my debian diffs into his source code. My diff doesn't patch his sources, everything is just in the debian/ subdirectory. Does such an upstream integration make any sense? Currently I think that this only causes more

First upload

A few days ago my application went through, now I am an official maintainer. The new package is ready, waiting for being uploaded. But in the mail I received as an answer to my application, it says, I have to wait until my public key is put into the Debian keyring. Does that mean I have to regul