I am not an “FT Official”, but here’s what I think I know ...
FFOH 2019 will definitely be at Furey Field this year, as Edgewater is not ready for such an event. Visits will be arranged, so checking it out is still possible, or so I have heard from FT staff.
The dates are not officially announced as of this post, however if history is a guide it will likely be the second week of July. I leave FT officials to confirm or correct me.
IF there is to be a FF California, it will definitely NOT be at Vallejo Fairgrounds. FT will not be going back there. Other locations have been suggested by several parties, including myself, however no decision has been rumored or even alluded to either way.
That is all I know or even am able to speculate about.