Code Geass Gaiden: Boukoku no Akito

I think so. From what I have heard they are making a side story to code geass of when Princes Schnizel (however あなた spell it) was attacking EU. That's what I was told so it sounds like the main characters are not going to be in it または anything.

No, Gaiden is the newest project on Geass. It's a side story set in a.t.b 2017 in the European warfront. Aired on 2012