Sports Bild reckon we could have an Indy 2005 on our hands, with some teams encouraging their drivers to boycott the race until the FIA officially investigate the Alonso incident.
http://www.grandprix247.com/2015/03/05/teams-threatening-melbourne-boycott-over-alonso-crash/
McLaren need to release the data in full. They are the ones who have been very coy on what happened.
Bearing in mind the issue with the seals Honda had in testing, it would be no surprise if it was an electrical issue, though what difference does it make to the other teams if it was? Has not happened to any other driver/team/engine combination and should McLaren have allowed Alonso on track in the first place when they knew there were issues with seals on the units that had prevented running before and the replacement parts had not been tested?