The dice is fully loaded in favour of HFT pioneers and incumbents, facilitated by the ever-growing and nouveau riche (e.g. Zayo) Tier-1 ISP's, who control most of the backhaul and dark fibre estate.
However, over the next few years, the advent of maturing ML frameworks, coupled with the intensifying war and ratification of standards over 5G/IoT based infrastructure, might prove to be serendipitous for nimble-footed enterprises.
Highly unlikely that 5g / iOS will play a role in the context of hft. Also your view of the ecosystem (eg zayo and co being the big winners) is massively outdated by five years at minimum.
However, over the next few years, the advent of maturing ML frameworks, coupled with the intensifying war and ratification of standards over 5G/IoT based infrastructure, might prove to be serendipitous for nimble-footed enterprises.
https://en.wikipedia.org/wiki/Zayo_Group