Agree with this. This time is 8:38 below last year's standard. Based on the reduced numbers of qualifiers in US marathons this year (against the tougher standards), it appears that the new standards have swept aside a huge number of squeakers. You shouldn't have a problem. My guesss (and that's all it is) is that the cut-off will be around 1-2 minutes.
Applicants' times are not going to be randomly distributed as you would expect but they are going to be clustered around various goal times.
https://marastats.com/marathon/It's interesting that, with a database of 3 million finishers in the linked chart, there isn't a smooth bell curve around a defined median but rather we see spikes at 3 hours, 3:30, 4 hours, 4:30 and 5 hours - which are obvious goal finishing times. Plugging my age and gender data into this calcluator, my 3:30-ish PR is about 40 minutes faster than the median but there is a higher number of marathoners who finished 5 minutes faster than I did. I would reason that this is the influence of (a) 3:30 as an obvious goal for casual marathoners aged 50-59 and (b) the influence of BQ thresholds in the 50-54 and 55-59 age groups. So, there are very real goal-influenced clusters in marathon finishers' times.
The question on everybody's minds is if 5 minutes (the change in BQ thresholds from last year) is enough for the BAA to shift the line to below the clusters that they see in the application data they have. Sure, the new BQ marks will just create new clusters around new goals - the question is if marathoners are up to that challenge. I suspect that it will take a few years before the BAA will have to reassess and potentially move their thresholds again.
In the meantime, I think that 3:38 under will be fine for 2020.