What shall be future technology in CAD? Shall Design Engineering also shall become Cloud based?

Yes , the world of AutoCAD is amazing where new ideas will change the whole concept.

I think yes it will be cloud computing , but not in near future

I believe all is moving to this point. Some good example is CATIA V6 where full collaboration set of tools is implemented for international teams (not related to any office) and all files are saved on Cloud based servers.

could you hear about autodesk fusion360 ?

it is a new generation of CAD/CAM software. it is cloud computing. with it you can design and discuss your concept with your design team easily. 

Several CAD consultants are speculating about technical drawings in the third dimension. However – you should bring some imagination whit you if you want to figure out what they meant.