What will R/C be like in 20 years?

[kulangflow]

I was reading the blast from the past thread and started wondering what R/C might be like in 20 years. I like to daydream about things like that in those rare times that there is nothing else to do.

-Will they still make NiMH and NiCD batteries?
-Will everything be lipo, li-ion, or something we haven't even heard of yet that is 50C capable with capacity measured in Ah instead of mAh?
-Will anything use brushed motors anymore?
-What will the HV controller specs be like? 20s/200A? It seems there would need to be a limit on voltage at some point due to weight/size concerns, unless the new super-batteries are SHV in a small, light package.
-What will the top speed record be?
-Will nitro go the way of the do-do due to cost?

I'm not looking for crazy predictions, but what you can really picture it being like. Feel free to add to the list!