Reading up on it some more, it does sound significantly less resource intensive, but it also sounds like migration from PoW to PoS is rather difficult and has s

Reading up on it some more, it does sound significantly less resource intensive, but it also sounds like migration from PoW to PoS is rather difficult and has some technical disadvantages. Is Bitcoin ever likely to migrate? If not, then it seems kind of moot, but perhaps new PoS players will come along and take over the market?