Expect to see decreases in Spanish speaking countries as visas for need-greaters are no longer being renewed and the WTBS are no longer co-signing for the visas. The growth in S. America was largely due to the number of foreigners that went there to have a greater share in the preaching work. Now that these folks have been returning to their home countries over the past year, many of the natives will stop being active. The foreigners had a big influence in converting people.
This leaves the doors wide open for other religions. Plus the other religions build schools, clinics and provide food and clothing. The JW's don't stand a chance. And the shunning in the JW religion just doesn't go over well in countries where "family" is the foundation of everything.