Supposedly, by Activision's payout schedule (which I also remember being the case years ago at Raven), they should see payout at the start of April. Supposedly. Which also supposedly factored into the decision to dump West and Zampella now, so they wouldn't have to pay them (which is also why they appear to be trying the "with cause" route instead of "without cause," which would likely leave them still eligible for some amount).
So hard to actually know what's going on
But I would wait a couple weeks before freaking out that all of IW isn't getting paid. If they haven't been paid in solid gold moneyhats by mid-April or so, then there's more trouble.