Hello, I have some fears about fufure of BTC (sorry if the same thread already exist, I haven't found it).

In future block reward will be equal to zero and it makes uspet the miners who are earning a living by minning. In an effort to continue earnings they will be increace fees of accepted transactions to block and we will have two choices: pay harder fee or wait to confirmation forever. Bitcoin is a dicentralized system but not fully because of minnig pools. Head of pools can decide for accepting the only transactions wiht big amount of fee easily.

For example (just random block):
Block: https://blockchain.info/block/000000000000000004019d60da68382b2bae8526dc57aa083073f1fd1f30e8ac
Reward: 25 BTC
Fees: 0.20759672 BTC

So minners should increase fees more then 100 times to save current earning level.

What do you think about it?