There was a bull reversal at ~04:30 GMT but Bitmain published the announcement later at ~07:00 GMT. So I think it's just a coincidence. Also I don't think some insiders placed big buy orders before everybody because the arrival of cryptonight ASICS is more bad than good news for XMR. Siacoin (SC) was badly affected when Bitmain released the A3 in January. Good news for us is the X3 costs 12000USD for a ~200€ daily mining revenue (ROI = 60 days as of today) while the A3 had a ROI of only 6 days!

Anyway, we really need the devs to confirm they will fight against ASICS. What's the situation on this? Do you know where the decision will be published?