No banks will not disappear as long as nations have their own currencies. People will still need to pay taxes in fiat currency and the banks will facilitate the entire process.

Bitcoin already acts as a bank in a way with the wallets being the bank accounts, but because of its ability to drop in VALUE by more than a few percentage points a year people are unable to store money long term.

it is pretty stable in relative terms (compared to other cryptos for example), but its market cap is 10s of billions, which pales in comparison to the larger forex fiat markets.

In other words, bitcoins market cap and volume must grow 100-1000x before it will be able to absorb the largest sell or buy orders without dropping substantially in value.

Bitcoin might not die but it could easily be replaced. For example, Monero is better in practically all the areas that bitcoin was initially praised for.

As the crypto currency sector grows it will split into factions like coins designed for smart contracts, coins designed to be used like cash today, etc.

Bitcoin is a lame duck compared to alot of the new tech out there but one must also remember that 95%+ of people still equate bitcoin with internet money - much like how tissues are called kleenex and to photocopy is to Xerox.

The brand keeps it alive for now but it will die surely.

Corruption of what? Bitcoin is only really used as the foundation for other block chain technologies, sot here is no risk of government corruption or the like... The smart contracts of the future from something like Ethereum are more likely to be used for corruption because they are more likely to have large organizations based on it.

Interesting concept - I'll get in on this.