I think we will see something after the June 2nd/3rd event. They will be showing off the M3 up close to a lot of fanboys and fangirls that will take to these message boards soon after. I think best case we will have some pricing on options shortly after. I expect them to start M3 production sometime in late July, but definitely before the Q2 earnings report and call and they will have to open up the design studio to the first people(employees) before that.
In addition as soon as the first people have access to the design studio, we will have screenshots of all the options hours later.
I wouldn't be too sure about any of that. Everyone going to the June 2nd event has to sign an NDA. Sure, there will be some people that blow it off and post things but it won't be a lot more than we already know now. They wont be told pricing there and maybe not even final specs on things like charging or batteries so they won't have much to share anyway. It'll be a lot of subjective posts about how it looks and maybe how it felt to sit in one.
I would almost expect that the employees that configure will do so at work where it can be more tightly controlled. Even if it isn't done that way, the employees have already shown how very good they are at not leaking things so I wouldn't expect to see any configurator screenshots until non-employees start getting a shot at it or the July reveal.
My guess is that, unless there are some teaser details tweeted between now and then, there won't be a lot of info on pricing or options until July.
