According to ntldstats.com almost 10% of all registered new gTLD domain names are in upcoming delete status; meaning for at least a while new G’s domain name may have peaked out.
On March 24, 2017 the number of new gTLD domain registrations sat at 28,854,146.
As of yesterday the number is 28,818,819.
However the number of new gTLD’s in “upcoming delete” status is 2,738,536 which 9.50% of the number of new gTLD registrations.
Once those domains delete through the amount of new gTLD’s should be around 26 Million.
This week the largest operator of new gTLD extension Donuts announced they were going for the 1st time discount the first year cost of registrations of nearly all of its domains.
Still looming large over the new gTLD registration numbers is the anniversary of the $.01 .XYZ sale which was followed by domain sales as low as $.02 which occurred at the beginning of June 2016 and prices remained for the entire month of June at $.22 at many registrars.
Before the $.01 sale .XYZ stood at around 2.5 million registrations and zoomed up in just days to 5.5 million domain registrations, reaching a peak of 6,640,848 on March 21 of this year.
So while new gTLD registrations total at the moment it around 28.8 Million domains it seems to be headed to 26 Million shortly and then still facing millions of more .XYZ renewing in June.
Finally Uniregistry announcement that is will be increasing the wholesale prices by 5x-30x in some of its strings, (even higher at the retail level) along with Godaddy announcement that they would not be selling Uniregistry new gTLD string will not help the overall registrations numbers
Bottom line the 28.8 Million domain mark in new gTLD domain registrations looks like a peak number in my opinion in new gTLD domain registrations for the foreseeable future.
The Donuts discount may help offset some of the losses in total new gTLD domain registrations but the next big move up again IMHO will not occur until .web is released and of course that will depend on pricing, marketing and availability of premiums the in extension.