Athough we may not know when it's actually arriving, Sony announced today that they will be expanding the Home closed beta test until the end of this month.
So if you're interested in applying, just download the PS3 Home theme available
"later today" now through the Playstation Store. The download will be treated as an application to be part of the Playstation Home beta test community. Sony will be utilizing several criterias to determine your elegibility for the beta, but current testers are already qualified for the expansion. Home is an exclusive community network service by Sony for the Playstation 3.
Playstation.blog: Want into the PlayStation Home Closed Beta test? Here’s How to Apply