What is most interesting about the Linux community is that there really is a "Linux community". I believe that the community will continue to do what it has always done -- code, develop, and work to extend the capabilities of the Linux operating system so that the question of whether Linux will ever dominate the OS world won't be a question, but accepted fact.
As for Linux itself, I believe that in 2003, Linux will make serious inroads onto the desktop, both at home and in the office. The average, non-techie user will be running Linux; your brother and sister, your parents, your grandparents... Those of us who are the "Linux experts" had better prepare ourselves because we are going to hear a lot about it "outside the community".
What advice would you give to new Linux users?
Don't be afraid. Explore. Play. Linux can be as easy or as challenging as you like. It all depends on what you would like to do with your system -- Linux has brought fun back to the personal computer and provides nearly boundless possibilities. So take some time to learn. Way back when in the early days of the personal computer, when we all ran DOS, there were no "stupid" users. Back then, everyone worked with a command line and many learned simple programs or wrote simple scripts (.BAT files). There aren't any stupid users now; it's just that year by year, the Windows OS has taken away the opportunity for the average user to stretch their knowledge (unless you are willing to invest in expensive tools). The advent of a nice, graphical interface was a very good thing, but along with it, many things were taken away (the command line, a free and easy programming tool, the joy of experimenting, etc).