It is normal thing in IR. They always make loco shed in nearby stations but not on main eg. Lallaguda near hyderabad, ajni near nagpur, gzb near delhi etc. It is not mentioned anywhere that this loco shed will contain only wagies so in future may get wapies also. As with the increased electrification passenger trains would definitely require wapies. This loco shed would home 100 elocos in begining which may be increased later. Even i have read somewhere that this loco shed will home 3-phase elocos.