The one in four is already starting to come down. Something to remember is that you can't just get out of the regular force one day and join the reserve force the next day and walk into the job. You have to meet all the requirements. You have to be fit. You have to pass your medical. So there's still a swath of requirements that you have to meet to be able to do that.
On April 13th, 2010. See this statement in context.