I enjoyed Judith Lieu's review of Dieter Roth's The Text of Marcion's Gospel (Brill, 2015) for Marginalia. What interest me most is how recent studies of Marcion's text seem to be suggesting that maybe we should stop thinking of it as Luke's Gospel redacted, but just another version of Luke's Gospel, maybe one composed even earlier than the version available to us now. The most intriguing aspect of this discussion is the absence of Luke 1-2 from Marcion's text. As Lieu observes:
This has implications for the study of the Synoptic Problem, the general composition of early Gospels, etc. I have a hunch that this discussion could result in many other areas of related exploration in the near future.