This isn't new - in fact, I don't think they ever said the housing update would come with the expansion. Here's what Sapience said back in early June:

Quote Originally Posted by Sapience
You're also correct that housing changes aren't specifically targetted at the expansion (that's why they don't appear on the announcement's list of features), but are targetted to this year. So you may see some elements go live before others (like the escrow changes we made recently).
Khafar