HMV has Supersonic listed as the next single to be released in the UK with a release date of 30 August. The Synkronized tour booklet says that Black Capricorn Day will be the next release so it looks like the UK will get Supersonic and other countries (e.g, US) will get BCD. We'll have to wait for more confirmation over the coming days.
Travelling Without Moving entered the UK album charts at number 2 today in 1996. Supersonic, the second single to be taken from Synkronized, was released this week in the UK in 1999.