Future of Software Devs

How the current SDE1 and SDE2 will get accomodated in IT industry in future. Hear me out. Currently lets say there is a team of 10 members in one of the IT company. Lets say 4 are sde1, 4 are sde2, 1 is sde3, 1 is teamLead. Now in future since higher positions are very less, how these 4 sde1 and 4 sde2 will get accomodated. In past years, for those who are currently at manager+ positions, when they were sde1/sde2, at that time number was low, so they got accomodated easily in growing IT demand. But now it seems there are already too many IT companies, seems very low probability that count of IT employees in total of India will even increase by 10-20% in next 5 years. Every year lakhs of IT engineers are also getting graduated. They can get that sde1 positions, but what about current sde1 and sde2 ? Do we need to find another career ?

Whoever comments, please explain in detail your thoughts. Need some discussions to decide future career path.