It's quite possible. I've had self-updating forums before just to test out RSS feeds. Wordpress has a plugin (the last one I found had a price) that can automatically update your site through RSS feeds at anytime you set (hourly updates everyday, for example).
Most things are technically possible but you want to make sure that no matter what you do you always leave yourself with the ability to be able to make human changes from time to time - make it look as if it has been administered by a human for some time. Always looks good in front of the SE's.