Predictions for 2019 NFL Completion Percentage?

[Clay Dreslough]

Question: What will the league-wide completion percentage be in the 2019-2020 season (and beyond)?

Background info: The league-wide completion percentage for the last 13 seasons:

2006: 62.0
2007: 62.2
2008: 62.3
2009: 62.4
2010: 62.5
2011: 62.6
2012: 62.7
2013: 62.8
2014: 63.1
2015: 63.0
2016: 63.0
2017: 62.1
2018: 64.9

It stayed between 62.0% and 63.0% for 12 consecutive seasons and then catapulted up to 64.9% last year. Is this a statistical blip? A change in officiating? New offensive strategies? Something else?

My instinct is that it will fall back somewhat -- to around 63-64%, because that's what stats tend to do. But I may be missing a much larger trend. Could it go even higher in 2019?

Clay

[irongoalie]

I project 65.2 this year. I see improvements from sub 60 QB's Darnold, Allen, Rosen, Jackson. Plus improvements by Flacco, Dalton, Rodgers and Garopolo versus Mullens. Offsetting regression by Brees, Cousins, Ben, Brady, Rivers, Manning/Jones.