Why are you wanting to know what to anticipate for next year?
The only time I've worried about it has been in math where I have asked the teacher for the scope & sequence for the rest of the year in the past. The reason I did so was primarily b/c I was concerned that dd wasn't learning anything and wanted to know if they had any intent of teaching anything for the rest of the year that she didn't already know.
I think that I'd go more that route: ask the teacher for the scope & sequence or rubric for next year or look online like the pp mentioned.
I do imagine that it could be viewed as cheating or an effort to prep the child such that he appears more capable if the school knew that you had copies of another child's work from the year up. It could make you appear to be one of "those parents" which would likely be detrimental to your ds since he might then appear to be less able and just hothoused.
