Hi! Yes, there are possibilities considering the fact that managing Bitcoin is decentralized. Although may I say that it will not happen anytime sooner, I totally stand on the belief that Bitcoin doing PoS in the future is a strong possibility. This way, Bitcoin can attract more investors because the PoS will help the latter preserve their wealth. There may be technical complications at the outset but it will definitely come to pass given the wide parameters of handling the investors' accounts.