I think they will stop analogue signal and will give all channels in digital mode..that time they will b in position to give 500 to 700 channels.
I hope so, but do you think this will ever happen? My cable operator of Hathway Hyderabad says that almost half of his customers do not have a STB, and this in a relatively upmarket area Somajiguda. It would take him a lot of effort to have them converted to digital.
Also, in most areas, Hathway Cable and Hathway Internet share the same co-axial cables bringing both cable and internet to the consumer as part of triple play. With broadband needs growing every minute, its not easy to eek out bandwidth unless analog goes.