GPU looks like it's going to be an absolute beast. Whether Mali have decent drivers for them is another question but I wonder if it will rule this year in terms of raw power.
But really what does it matter ? No one outside of benchmarking is really pushing GPUs as is. Twitter & Tapatalk aren't going to feel snappier. Even the most taxing android games are not really taxing 2015 flagship gpu's let alone 2017 ones. It's a great thing to say 2 X more powerful GPU, but the real impact that has on 99% of end users is mostly negligible if they have a flagship as is.
People want bigger, faster machines but are still fundamentally trundling along at 30kmph ...