In time it may become a trade-off between new (with associated features and speed) Vs tried and tested/secure.
To us now this sounds perverse, but remember that NASA generally use very old hardware because they can be more certain the various bugs & features have been found and documented. In NASA's case this is for reliability. I'll concede 'brute force' does add another dimension when applying this logic to security.
This may also become an AI arms race. Finding exploits is likely something AI could become very good at - but a better AI seeking to obfuscate?