If you are interested in the issue of doctrinal development, and, specifically, the Catholic understanding of apostolic criteria, then I recommend the discussion being had on the blog, Fides Quaerens Intellectum. In particular, see this post by Kepha on the historicity of the bodily assumption of Mary. The comment section is quite lengthy but with some good thoughts, especially from Tim Enloe, Peter Escalante, and others. Kepha has a good summary of the discussion (the Catholic points and counter-points) here:
And, lastly, here is a list of links to the most important posts related to the subject (we’ve been going over this from many different angles for several months now):
I do not know of anywhere else on the web currently where the Catholic side is taken as respectfully and seriously along with Protestant objections forthrightly displayed.