Space Adventures works with the Russian Federal Space Agency (Roscosmos) to fly private citizens like Brightman on Soyuz taxi flights. Those taxi missions normally last eight days, but NASA and Roscosmos are considering a plan to extend the 2015 taxi flight to one month, so it can carry a scientist to perform some additional research aboard ISS. If that happens, Brightman will lose her seat.
This situation points to the need for more flexible transportation options and new orbital facilities which are not subject to the same operational restrictions as ISS. SpaceX, Boeing, and Sierra Nevada are working on the transportation problem, while Bigelow Aerospace expects to begin launching its Space Station Alpha in 2015. So, the era of citizen astronauts visiting ISS may be drawing to a close."