chinmadThe short, specific answer is: I don't know.
The "wise-guy" answer would be: when Massdrop receives them.
The answer from my limited experience as a customer and observer is that the estimated reshipment date ought to be a "date range". While some products may ship sooner than expected, unforeseen delays are not uncommon.
That said, Massdrop usually provides regular updates and doesn't let unexpected delays get too out of hand.
Cheers.
Edited for typos, grammar and clarity.