Of course one can have blips or bumps along the journey of remission. I would gauge one's success by the colonoscopies/biopsies. I would also gauge oneself by the typical stuff, urgency, mucus, bleeding, etc... I have had very small blips along the way but everthing reverts to normal rather quickly, i.e. days. I blame that stuff on non uc stuff like eating bad food, virus, etc...
Again, glad to hear of your success, keep in touch.
MyUC