Activity And GroupJive

Is there nay plans for the activity plugin to be able to feed in to groupjive walls?

For example, someone posts on a groupjive wall, this feeds in to the activity stream. When someone comments on that activity on the activity module it would then also show up in groupjive. Is this possible?

Nope. It's doable I guess with a Query auto action to insert the activity contents into the GJ Wall database, but it's not really recommended. There's no point using both CB Activity and GJ Wall. CB Activity is a direct upgrade to GJ Wall. GJ Wall is still provided because we don't know what to really do about people buying only GJ and not having access to CB Activity as it'd be an incomplete community groups solution.

So CB Activity is meant to replace GJ wall? How does that work with separate groups with private access levels etc. Can Activity do the same thing as GJ wall? I thought there was some key differences.

Yes, it can replace GJ Wall. GJ it self will handle access protecting the stream as it does with other integrations. Same with CB Gallery replacing GJ Photos, GJ Files, and GJ Videos. All you need to do is publish the below system actions in CB Auto Actions to replace those 4 integrations.

CB Groupjive - Stream
CB Groupjive - Gallery

So instead of displaying a groupjive wall, I would need to display a activity tab inside a groupjive group. Doing this would allow activity to feed in to a group?

Yes, it'll display a unique per group activity stream. Only members of the group can post on the stream. Normal display access still applies (e.g. Open group has a stream visible to everyone). Same applies for CB Gallery usage.