Wow, that was an awesome response. Since I don't want to lose my replies in the comments, I would post them here.
Note: I still don't know if this is going to be a free/cost or paid course.
As a matter of fact, I am a professional instructor :-) I am even cerified one. I got the same problem here as I have with the other certifications, I don't agree with the official curriculum.
There seems to be a lot of people from all over the world who would like to have a webcast, which mean that I will try to make one. I do not know anything about setting one up, so it would be interesting... :-) There is probably someone in my company that do know how to do this (there generally is, but that is generally me :-D ), so I need to see if / how this is possible.
I would also like to thank anyone who commented on the previous post, and ask an additional question, assuming that you would participate in such a course (or web cast), would you do it alone, or would you drag other developers to it as well?
For general interest, here are the list of people who expressed interest, grouped by country...
And here is the google anaylstics geo map for total visitors for the blog: