is it possible to release template modifications as addons?
ideally, i would like to simply replace an existing template with new template code. it seems it would be pretty simple and straightforward, but i have yet to find an example of somebody doing something like this.
I do it in my XenPorta modification... However, I do not replace any base templates, only existing XenPorta block templates. I do not recommend doing what you are trying to do, because in order to do this, you pretty much have to update the MASTER template... which is something you should never do, because you are essentially releasing a mod that changes core functionality of XenForo at that point.