Yea, that's true. There's already been some of that with home solar installations and utility companies. The potential will be there at least.
Yea me too. Nothing better than getting 50MPG and no range anxiety. Honda Accord Hybrid is a solid pick and I read the Volvo hybrids are nice. Ram has the e-torque but I'm shocked they didn't take that concept further in pickup trucks.
I think the next few years we'll see a move away from lithium-ion to solid-state batteries with the main benefit being safety and operating range. The liquid electrolyte is what causes the battery fires and operating temperature requirements. From there, though, I think it'll be a while for new chemistries.