I agree. Steady declines are occurring in most areas with internet access.
However, I think Watchtower is combating this by making it "easier" to be counted as a JW, therefore changing the definition of what it means to be counted as one.
Even younger children are pressured to be baptized, thereby "juicing" membership temporarily.
"Active" publishers are now ANYONE with a heartbeat elders THINK participated in ANY type of service for 15 minutes.
"Pioneer" hours have been reduced so almost anyone can qualify, thereby keeping the numbers up.
"NEW" congregations in some third world areas are any group of people who can arrange some benches under a tree, where ANYONE can "PARTAKE". Lack of training, internet, and literacy results in a religion that most first-world members would not recognize as "Jehovah's Witnesses".
Personally, I think many people will stay on the membership roles in name only because of family and social pressures. Humans love to be part of a "tribe". ie: in many areas almost everyone professes to be Catholic, yet the majority of people only attend a few times a year to keep the family happy.
My 2 cents