Long story short for the non comic readers:
1. Psylocke/Betsy Braddock (originally Caucasian) and Revanche/Kwannon (originally Asian) were fully unmerged during “The Hunt for Wolverine”.
2. Kwannon, now fully Japanese again, took over the code name Psylocke in the last volume of Uncanny X-Men (Prior to House/Powers of X)
3. It was announced months ago Betsy, fully White British again, would become Captain Britain.
4. Kwannon as Psylocke wears a purple costume but has brown hair. She will be in this comic baby sitting a few teens: