I posited this question on one of the Facebook pages the other day and it is like talking about a leak is akin to having a black cat walk across your path. There appears to be a variety of thoughts from "always-the rest of your life" to " a year". And then there is always the one person who tells you the horror story of a sudden development of a leak 2+ years out and the veteran who uses the question as a cautionary lesson in "following your plan and never straying from it". My question was based on curiosity as it seems to me that the healing process of the body will eventually result in diminishing leak risks. My conclusion is I am going to the horses mouth and going to just ask my surgeon his opinion. (and of course do my own review of the research on the subject. )
Ultimately, I think if I was willing to have 85% of a healthy stomach removed, then worrying about a leak now is like shutting the barn after the horse gets out.