I'm worried that some of these musicians would love to be more active, but as has sadly been demonstrated with Sunny Murray, they don't get offered that many dates in late. Coursil plays solo, like last year in a record shop. He would be comfortable of course with much longer playing time, but that's how today's format is. Alan Silva who was supposed to be playing today finally is not, last time he played in Paris as far as I know was two or three years ago. It's also rare to hear Bobby Few nowadays. Last time was him filling in for Arkestra pianist who couldn't come.
As for André Jaume, I don't know. He was playing in some festivals a couple of years ago and seemed in great shape.
Yes it will be great to see Steve Potts!