Yes, you can get a bypass when they remove the band. May I give you some advice? The bypass is pretty final. EVERYONE that I have talked to has had complications but they also say they would do it again. I myself never once considered the bypass because it is so invasive. I got the band in March 2010 and am having it removed July 9 due to not feeling well, intermittent nausea, tummy issues, etc. I, too, am worried about re-gaining weight but if I do, then I do. I think I won't though. You have had your band longer than me so you must have lost weight and learned to eat differently. Just try very hard to continue that.
Can you tell I am very much against the bypass?? LOL But seriously, think about it beforehand. It's a big move. Good luck!