They must have discovered they were accidently educating people in the english language. The Watchtower is anti-education. Additionally, most apostate information on the internet is English... so that's the last langauge WT wants to promote.
In 5-10 years, they'll decide it's a good idea to 'consolidate' the two issues back into one to reduce overhead. They'll make the study articles read like the dumbed-down child-speak, and put 'advanced topics' in little grey boxes for anyone left in their cult that can read the big words. This will work out great for them in the end: As less and less of their of their writing staff is properly educated, it'll be easier to produce articles.... plus they'll have an excuse to feed all their followers a "baby-food religion" and sweep under the rug failed their explainations regarding 1914, the origin of life, etc.
What do you do when the intellectual world is kicking your ass? Make it easier for your followers to STAY DUMB.
- Lime