We know very well that Dual-Sim Lumias are coming after all. First, Jo harlow accepted in an interview that Nokia is working on dual-sim Lumias and later we saw Qualcomm releasing Snapdragon 200 chipset which supports dual-sim capability.
Now, Chinese site WPDang has added from its insider sources that not only Nokia but also HTC is working on Dual-sim windows Phone. Also, these dual-sim Lumias will have dual standby feature which means unlike Asha which have only one Sim active at a time, both Sims will be active in these dual-sim Lumias. This feature will be really welcomed in emerging markets like India, China etc where buyers really love these dual-sim phones.