That's good to know. However it was the whole "where's my Ludicrous upgrade?" cry from some which suggests that there's a number of S owners who, having migrated from the halo cars of other manufacturers naturally expect Tesla to adopt a similar product hierarchy and maintain the S as top dog. Short term, while the 3 production ramps up, I thought that might be true - so possibly the part 2 of the Reveal would feature a 0 to 60 of 3.0 rather than matching or beating the S's time. But the announcement of 500k cars by the end of 2018 makes me think that Tesla are not going to modify the 3's specs, just to maintain current reservation numbers.
Elon said that he was expecting 3 reservation numbers to take off,
but only after part two of the Reveal - suggesting that the options/specs will be streets ahead of anything else (again).
Will there be a thread on the S forum with the title "Where's my Model 3 tech upgrade?" Probably.
Do Tesla need to boost reservation numbers still higher? Looks like they're preparing for it.