It there any way this would pass anti-trust? Especially in this tense political climate when it comes to Big Tech (I'm thinking both of Europe and especially fo the US).
Yes, can't see the government looking at this. This isn't two gaming companies combining. US anti trust looks at harm to consumers, meaning does this reduce competition amongst game makers, and the answer is obviously no. This isn't two gaming companies merging. This is one unrelated company acquiring another. Us and European anti trust don't look at the size of a company as a factor.
That has been changing very fast, this Economist article back from the start of this year touches on that aspect (among other things): "The growing demand for more vigorous antitrust action" [1]