Yes and no.
The only reason the WT makes any changes is because of corporate gain or corporate survival.
The appearance of 1 less meeting is cancelled by the choice of study books. This years release seems to be a culmination of Bro. Losch's (who is reported to have admitted there are errors in doctrine) speeches over the last couple of years. They want cookie cutter looking families from the 1950's, for all to obey without question, FS FS FS, and donations.
Will there eventually be some further changes in doctrine, yes but again it will be motivated by the gain/survival mode. Right now you have a mix of oldtimers who really believe this 80's style clamp down is gonna save them, while others want to mainstream further to increase converts and improve retention because they will out live the oldtimers and they have devoted 30+ years to achieve the position they are currently enjoying. The problem is that those making decisions get their info from the overseers, who get info from Elders wanting to look good, who get their info from R&F who probably is fibbing to the Elders to look good.......
They would do better to read JWD if they want the pulse of the English speaking JWs. Right now all but 6 families (oldtimers) in my KH would leave the JWs if they had a "place to go" according to my informal parking lot survey last Sunday.