Unfortunately, I wouldn't consider this very likely at all. While there is 8 DIO lines on this boards, you only have immediate software update control over them. (No strobed, hardware-timed output.) So you'd need a program that constantly toggled the state of these lines which would not be very fast or deterministic for that matter.
A
PCI-6602 counter-timer board would be a more likely solution and costs much less than a 6052E. However, you'd have to trigger each output at the right time in order to get the phase shift. The most flexible solution would probably be a
PCI-DIO-32HS.
-Russell