"... we hope that, if possible, you can stay in your current assignment."
So, essentially, this letter says: "We really want you to keep doing what your doing as a "Special Pioneer," but we're not going to be sending you any more money."
WTF?!?
Please be assured that Jehovah will continue using you to strengthen his people wherever you might serve in the future. Remember also that he has the power to do much more than anything we could ask or imagine.
Except, evidently, keep the dollars (or pesos, as the case may be) flowing.