I don't know but to become a pioneer for August 2014 just because we have a new tract to campaign (or distribute) for and just because we are celebrating 100 years of God's Kingdom, is not motivating enough.
If a JW does not believe the 1914 doctrine anymore and the end is not near as the Society has trumpeted for 100 years, then what is the RATIONALE for joining the fray? As christians, we have the privilege to preach the good news - with or without being a pioneer. Only Jehovah God sees what is in the heart.
The new August tract has JW.ORG prominently printed on it. It can be considered as a subtle if not direct marketing for the website. While there are articles that are worth reading for the public at large, I personally don't believe it is compelling to go out and comit yourself to investing 50 hours to campaign. Besides, there are "good and fine works" outside of the preaching work (Heb. 10: 24, 25).
24 " And let us consider how to stir up one another to love and good works, 25 not neglecting to meet together, as is the habit of some, but encouraging one another, and all the more as you see the Day drawing near. "
Instead of devoting 50 hours of sharing the new tract, why not have some of those hours devoted to doing charitable works, visiting the brothers (and even non-JW friends) who are sick or need help, visiting orphanage which is scriptural also. How about spending time buying gifts as surprise presents to the brothers? There are probably a long list for good works for you - and not only preaching. :)