Google (GOOG) and the City of Austin, Texas on Friday sent out press invitations for a special announcement slated for next week. Unnamed sources have told Venture Beat that the event could involve Google Fiber and potential plans to bring its gigabit broadband Internet service to the city. It is also speculated, however, that the announcement could be for a new Austin-based Google campus or perhaps some other partnership between the two parties. Google Fiber is currently available in Kansas City and the company recently announced plans to expand its high-speed Internet service to residents in Olathe, Kansas later this year. Google’s event is scheduled to take place on April 9th at 11:00 a.m. CDT/12:00 p.m. EDT.