So I read an article a while back about Ethereum switching over to a PoS algorithm... But on Ethereum classics twitter feed I saw a post saying that its going to be a hybrid of PoW and PoS. When is this change expected? Also, the Ethereum developers have said theyll be releasing the difficulty time bomb on the PoW system. What does this mean for miners?
I suggest you read the official ethereum improvement proposal through this link
https://github.com/ethereum/EIPs/blob/master/EIPS/eip-1011.md and it provides the full explanation regarding the future pos system of ethereum itself. In that proposal says that ethereum will be fully moving to the PoS system and the requirement for you to be the stakers has already mentioned and it has created by ethereum PoS developer.