When we evaluated Hybris in July - August of 2012 one of our greatest fears was Hybris being acquired. At the time Adobe seemed like the mosf likely suitor due to the recent tight integration with CQ5. We joked that SAP was a logical choice to acquire Hybris but no way they would do it.
I am not sure how I feel about the acquisition, it can either be a great thing for Hybris or can completely derail all that is good about the platform. Initial documentation states that Hybris will remain as a subsidiary of SAP retaining the Hybris brand. If that is truly the case there could be hyge benefit in terms of integration with other SAP platforms and services.
One of the weak points of Hybris was there small consulting force. SAP can certainly help to increase their scale.