I wish to transfer my blog from 'www.currentblog.wordpress.com' to 'www.currentblog.com'. Within this situation what's going to occur to my existing Nourishes. Can they be instantly up-to-date. I haven't burnt my feeds using FeedBurner.

If you are really moving this content in the Wordpress server for your domain title i quickly think they'd need to change. You can alternatively just forward or redirect the domain to the present blog and do not make use of the trouble.