Definitely an FA24 with 94mm bore and same stroke (see below link).
Seems like a bit of a waste considering it only makes 25nm more torque and 10 more hp at the same RPM as the Forester XT with the FA20.
Would theoretically mean you could rev it higher in NA form, assuming they plan on making a NA version.
https://www.subaru.co.jp/press/file/...17_1129_02.pdf