For IBM's current plans for the coming year for OS/2 support see my Warpstock 2001 report - Whither OS/2? - [link|http://www.os2voice.org/VNL/past_issues/VNL1101H/vnewsf1.htm|http://www.os2voice.../vnewsf1.htm]
Basically after Dec 31, 2002, IBM will not release any more fixpacks or CPs for OS/2 unless you have a support contract. And IBM doesn't consider SWC a support contract. SWC will just be a mechanism for delivering updated drivers, updates to the IBM browser and possibly things like TCP/IP and Java.
Serenity has an IBM support contract so they will have access to any additional fixes beyond 2002.
Mark