The shift from block rewards to transaction fees could influence miner incentives and the network's overall security and sustainability.
How did you come to that conclusion? Bitcoin's Total Hashrate currently stands at around 450-500 Ehash/s, marking record-high values. From that, we can conclude that the Bitcoin network is more secure than ever. So stop writing nonsense.
Dude it is not nonsense but it is likely to be at least 2048 before the shift to the scrypt algo happens.
just look at sha 256 and scrypt it is fairly obvious that at this moment btc has not fixed the collapsing rewards to fees ratio and that scrypt has.
Now this does not mean btc and sha-256 will start to fail in 2048-2056 1/2 ings it just means the adjustments need to fix the future issues have not been made as of today.