I'm in a situation where I earn money in one country and have debts in another, and/or intend to relocate there eventually. Thus, at some point I'll have to transfer my earnings to another currency. I would like to know whether I should do so now, or wait a few weeks / months / years in the hope of a better exchange rate.
My question is, how would I go about finding that kind of information? If I search for currency forecasts, all I seem to find is week-by-week (or day-by-day, hour-by-hour) forecasts aimed at currency traders who have a lot of technical background that I lack. Is there a resource that can help me, as a complete layman, understand the possible things the exchange rate might do, on time scales of months up to years?
(I've tried to keep this question general in order to maximise its usefulness of others, but to be specific, my earnings are in JPY and I'll eventually need to convert them to GBP. The exchange rate has become much less favourable over the last few years, and I want to know whether I should transfer as much as I can now in case it gets even worse, or wait in the hope that it will go back up eventually.)