GameSpot conducted an interview with Phil Harrison at the Tokyo Game Show this week. In it, he confirmed that Home (although, delayed) will be seeing an open beta in late November/early December. So, no need to fret about the delay, at least, entirely.
"We will still be opening in late November/early December for general beta testing. So, the commercial start of Home will be pushed out later, but you will still get the experience this year," explain Harrison.
We'll keep you updated.