You will note, it's the Vorkosigan Series, not the Miles Vorkosigan series.
I will laid a solid wager that Gentleman Jolie and the Red Queen is the last Vorkosigan book. We started this rollercoaster with Cordelia falling in love and we end this rollercoaster with Cordelia falling in love. Bookends.
Too bad. I was hoping for General Piotr during the Cetagandan Occupation novel, myself.
On the other hand, Herself stated on more than one occasion that she couldn't see herself writing an Ivan book either. Then we go Captain Vorpatril's Alliance, and I for one am grateful.
So you never know.