The Mega Power Modifier for intangibility doesn’t appear to conflict with the new rules for the base power, so I’m inclined to leave it as it is.

UPDATE: The updated Savage Rifts Mega Power Reference was just published this week.

They added a Mega Power Modifier, “Additional Recipients,” which is notable for how many more Power Points it costs to add, and also added a “Duration” one that’s just the first half of what used to be “Greater Intangibility,” making rounds into minutes. The second half of the old modifier, which reduced incoming damage from supernatural sources, has been dropped.