The weekend is possible for experimental flights, but unlikely if they offload the design and manufacturing of the stencil to mark the planes prior to flying them.(before anyone takes this seriously, it is not meant to be that way)
Flight tests won't be approved until they have a Test Readiness Review (TRR), which basically means that they have to have a whole lot of analysis done (i.e. FMEAs and safety analysis, etc.) and an actual Test Plan, Test Procedure, Test Equipment and expected Test Results. I'm sure that Boeing has most of this already, but it needs to be updated and reviewed by the FAA before the flight test is approved.
Possibly that will happen next week, but not before this weekend.
If you want specific information on the battery issue and what industry experts are saying, mosey on over to the aviationweek site. Lots of good technical information from competent engineers and reporters, with no biases.
The longer this goes on with no news, the worse it becomes. Because they just don't know why the batteries caught fire, they cannot develop a solution. And since they cannot discover why the batteries caught on fire, either their assumptions or their models of their systems are either wrong or inaccurate at best. Once they find the root case, they need to find out why it wasn't exposed by the analysis and/or test, and then they will need to re-test or re-analyze everything else that might have been hidden by their incorrect model.
Flight Tests may happen next week, but passenger flights won't be allowed till mid-March at this point. Why do you think the airlines have cancelled all their 787 flights through February already ?
Your sentiment to sell is understandable. BUT I would not short Boeing.
This is a test flight without passengers.
Boeing has a lot to lose. It's their risk and no one elses.
The test flight will be approved sooner than later.
Remember BA is in Obamas home state.