1. The event will have a new visualizations field to let the gui know which visualizations to turn on for this event (in the analysis view), the field is located:
event.metadata.json[0][0].visualizations

e.g.:

{
	"event":
	{
		...lots of fields blah blah...
		"metadata": {
            "json": [
                [
                    {
                        "_id": "5347106ce4b051fe39633d2b",
                        "key": {
                            "id": "russia/country||sanction||ukraine/country",
                            "cat": "diplomatic relations"
                        },
                        "description": "2 documents containing association: russia/country sanction ukraine/country \n'Euphoria over Crimea won't last'\nRussia's euphoria over Crimea won't last\n",
                        "title": "Russia & Ukraine - Diplomatic Relations",
                        "titles": [
                            "'Euphoria over Crimea won't last'",
                            "Russia's euphoria over Crimea won't last"
                        ],
                        "stats": {
                            "median_date": "Mon Mar 31 2014 00:00:00 GMT-0400 (EDT)"
                        },
                        "dates": [
                            "Mar 31, 2014 02:27:07 PM UTC",
                            "Mar 31, 2014 02:24:51 PM UTC"
                        ],
                        "verbs": [],
                        "visualizations": [
                            "MEDIATYPE_VOLUME_OVER_TIME",
                            "GEO_MAP",
                            "ENT_TYPE_SENTIMENT_FREQUENCY_RELEVANCE"
                        ]
                    }
                ]
            ]
        }
	}
}

2. Depending on what visualizations are turned on in the above list, the data will be aggregated in new fields currently:
doc_info_aggregation
ent_info_aggregation
...more if we need them

They are located at the root level e.g.
{
	"doc_info_aggregation":[],
	"ent_info_aggregation":[]
}

doc_info will be objects like:
{
	public String mediatype;
    public String publishedDate;
    public GeoPojo docGeo; //only exists if doc had a docGeo
    public String docTitle;
    public String docId;
	public String docUrl; //not always present
	public String docDescription; //not always present
}

ent_info will be objects like:
{
	public EntityPojo entity; //entire normal entity objects just copied in here
    public String arch_type;
    public Double aggregated_sentiment;
    public Long aggregated_frequency;
    public Double average_relevance;    
    public List<ObjectId> doc_ids;
}

3. The "rawdocs" will now be located at the root object in the "data" field e.g.
{
	"data":[{doc1},{doc2},...]
}

I've left them in the event.metadata.documents currently so your old UI will work,
BUT THEY WILL BE REMOVED FROM THERE IN THE FUTURE, once you have switched your gui to work with the new locations.