Some of the features from those lists we have implemented include ALTER COLUMN SET DEFAULT, pg_table_is_visible(), UUID, extract(), and (some) schema changes in transactions. 1.2 will add (at least) INET types and sequences.
Supporting an ORM would boost the usage in my opinion. We're using Django with PostgreSQL for a social blogging platform that needs to hold posts, comments, likes/votes, recommendations, analytics, metrics, billings, payment transactions and many more small and big informations. We're good with PostgreSQL at this moment and we're thinking to keep posts into a Cassandra database later in order to scale the database, we could use Django ORM multi-database (router) to keep these data into another database and have all the beauty of Django ORM.
If CockroachDB could start supporting Django ORM properly we'd start using it alongside our PostgreSQL database.
Can't wait to see CockroachDB getting Django ORM supported completely.