According to Northlight, In Germany the dealers of Canon pro are being invited to an event which is going to held in July to prepare their self for August announcements. If the pro dealers are involved on that event then we can expect that Canon will launch at least a prosumer DSLR and some higher end lenses.
List of Upcoming pro-Canon camera (based on rumors surfaced over the web)
1. Canon 7D Mark II (High Priority, coming on sep 2014)
2. Canon 5D Mk IV (Q3, Q4 2015)
3. Canon 6D Mk II (Q1 of 2015)