Perhaps you have a different source confirming Barclay's work on Galatians for the ICC series, but it looks like Christopher M. Tuckett's volume on Galatians is set to release in that series later this year: https://www.bloomsbury.com/us/galatians-9780567716408/
Perhaps you have a different source confirming Barclay's work on Galatians for the ICC series, but it looks like Christopher M. Tuckett's volume on Galatians is set to release in that series later this year: https://www.bloomsbury.com/us/galatians-9780567716408/
My bad, I fixed it, Barclay is doing ITC ("T") not ICC