Basically with any immigration class, they can be subject to change at any time. Just look at the way that list of occupations was introduced. My advice, if you qualify to apply now, apply now. Otherwise, you may get unlucky and by the time you want to apply, there has been a change and you don't qualify anymore. If you don't qualify yet but are waiting to get more work experience etc., then you have to wait and hope for the best.
Thanks Leon,
Actually I haven't complete my 1 year with my current employer thats why waiting for the same..
And thanks rely for your comment it's encourage my hope..
Thanks u all..
Regards