Overview

Let's look at them in detail.
Initial Load for Opportunities
We now offer an initial load of opportunities from C4C to hybris Marketing. This is the extraction screen in C4C.

There sample here shows a selection of opportunities by an id range. The "package size" field controls how many opportunites are sent within one outbound service call. If e.g. 750 opportunities are extracted, the system would create 8 messages, 7 with 100 opportunities and one with 50 opportunities.
Integration Extension Guide
Another thing worth to mention even if not really a new feature is the integration and extension guide. You find it as well in SCN at this link:
How to extend your SAP Marketing solution in an integrated SAP Hybris Cloud for Customer scenario?