SegWit will allow 4-5 tps. That will help some banks participate, but not many. If banks can't even use Bitcoin, who will?
Be your own bank. we get an extra 4-5tps written to the blockchain but the Witness data that get trimmed puts a 4X increase on the bandwidth needed by the network.
Even though it makes my cause look favorable , I have to correct you . Segwit gets us 1.7-2MB realistically, not 4x.
6.8 - 14 TPS
Other than the fact that no one is suggesting to have every transaction on-chain, would that be as stupid as your solar/micro hydro solo mining farm?
Or ...not quite?
Actually quite a few Classic supporters are suggesting everything onchain, and there are no plans for payment channels in Classics roadmap-
https://github.com/bitcoinclassic/documentation/blob/master/roadmap/roadmap2016.md