I don't know their endgame but given the fact that more and more work is being done in the cloud. Macs will start looking more like Chromebooks as time passes. Ports are less and less important once you have all your data in the cloud and can access it at will.
What else can you expect from a company who's idol famously said, "Stay Hungry. Stay Foolish?" They are certainly looking foolish now but their hunger is leading them to future profit and a long life. I wouldn't bet against them.