Yep, we're back with conglomerates as we had them until a few decades ago. But I don't think this will last long. In a decade or so people will realize that specialized business earn more money and will force them to split up.
I think that it is the natural state of trying to build out a completely new product line (electric cars). They have to build out basically all of the infrastructure themselves at first (quality charging stations, power production to keep the utilities from overcharging their customers, batteries to vastly increase the supply, etc).
As the market matures, some of these businesses might be spun off.
