I have to admit, Amy (Reeter)'s question during our Web Dev meeting on Tuesday, of what I think are the next new technologies, caught me a little off guard. Because of that, I don't think my response was as complete as it should have been. I'd like to expand a bit on what I stated.
The next new technology that will affect our jobs, in my opinion (and this is PURELY speculation), is mash-ups. If you are unfamiliar with mash-ups, it is a new breed of interactive web application. It takes data from multiple, external/internal sources (using web services and/or online application APIs), and "mashes" that data into a brand new online service.