My company's main website saw a 50% drop in traffic in mid-March. The majority of the traffic to the site was foreign and to some unmaintained pages (the online version of a booklet we no longer publish).
Monday and Tuesday have shown a drastic increase in traffic (+84%), and today's traffic (as of 2:00pm) has already nearly matched that of Monday and Tuesday.
The weird thing is that the traffic we lost in March was from one section of the site and the traffic we seem to have gained is to a different part of the site.
I've made no changes to this site.