Novell isn't going anywhere anytime soon. Furthermore, SUSE would continue to live on even if Novell went down under. It has a wide community and a strong presence in the enterprise environment. Plenty of other companies would be more than interested in buying the operating system even if just to keep the duopoly with Red Hat. Excellent products come out with SUSE continuously and it would be hard to replace it's place as it has proven to be a very usable desktop aswell as a solid server.