User blog comment:Dave55811/Chapter 48 release date?/@comment-5149736-20130806083543

No, actually your question is very relevant! Thank you for asking. In the past, Shingeki no Kyojin was released on the 11th of each month. Lately however, it has been produced earlier so I know for sure that a new chapter will be released this week. I honestly wouldn't be surprised if it happens to come in tomorrow.

Hopefully someone else can give a better estimate, but please, don't hesitate to ask questions on the wiki. There is always something for everyone to learn, Dave!