The makers of the game went bankrupt, so, that would be very unlikely. There is an expansion that came out though before they bit the dirt, The Infected.
That's not completely true. Cliffhanger Productions was actually two companies : Cliffhanger Games and Cliffhanger Software. Cliffhanger Software has gone under, but Games is still surviving for now. They even managed to send the items of the Kickstarter campaign (I received by bag, miniatures and t-shirts a few days ago).
I asked about Shadowrun Chronicles' future
on Shadowrun's portal site, and Primetide (aka Jan Wagner, the company's boss) told me
"It takes all the money we have to get the swag out, so we need to find a budget out of the work we currently do..."Which means no update in the foreseeable future, but at least the company is doing some work-for-hire projects, which means they have a chance to get better and might be able to produce some new content for SRC someday.