Infinity Countdown, for the most part, feels like rebranded issues of Duggan's Guardians instead of an Event(TM) proper, so I honestly don't expect her to show up too much outside of that one-shot in June. It is cool seeing Natasha in a cosmic event, though. It kind of reminds me of that Captain Universe crossover from a few years back, that had a lot of different kinds of characters getting the Uni-Force power.