If you go on the EMAA website, select careers and look through the ISS site you can get a couple of spreadsheets that outline OUTCAPS and other data. If you go to the CFB Borden website and you look and the CFRG HQ website, you can find the production tables for this year which outline the amount of billets available for this fiscal year for EVERY trade in the CF.
The production tables for next year FY10/11 will not be available until the Spring sometime as I understand it. The reason for this is that all the data for all the trades gets submitted this quarter and all the numbers get crunched to figure out how many billets will be recruited for, this applies to forecasts for all the commissioning plans, i.e. ROTP, RETP, CEOTP, UTPNCM, DEO, etc as well as the applicable equivalent for the NCM trades.
If you use the data on both sites outlined above, along with the available historical data you would get an "idea" of what will be available. Nothing is final until the process I mentioned is done.
Disclaimer: I am not a clerk, involved with recruiting or administration. I looked into this when I was trying to figure out available positions for UTP in a specific trade.
Hope this helps.
UG