You can move outside the country during the current year and qualify for SEN with the 100k limit.
I moved to the US this spring and changed my address online. The system took some time, but a few days later it was moved to the US and logging in from M&M now takes me to the LH-usa.com site.
The LH visa continued to be on my old address in germany. I recently changed that address by only going online at
www.kartenabrechnung.de and changing the address to my companies HQ in germany. The mail sent there by LBB (only once this year) get forwarded to my office in the US by the corporate mail department.
Make sure you office address is also changed in your M&M profile.