A big problem with on foot gameplay is that there isn't much to do without having to travel across a system which breaks up gameplay too much and actually degrades the sense of scale because actual gameplay takes place in smaller areas (settlements and then bases) separated by a travel system that takes you out of your on foot perspective.
A way to improve on foot gameplay and retain the sense of scale would be to have larger settlements or networks of settlements separated a few KM apart which can be traversed between via SRVs, small ships or even on foot with missions to do between them (assassination missions, courier missions, retrieval missions, conflict zones, etc.) all within a small-large area on a single planet giving you a reason to stay on a single body for a few hours or days.
The settlements feel nearly inconsequential when the primary gameplay loop requires you to go in and out of them constantly without any real reason to stay or care about them.
Let me know if I'm wrong or if you have another perspective.
A way to improve on foot gameplay and retain the sense of scale would be to have larger settlements or networks of settlements separated a few KM apart which can be traversed between via SRVs, small ships or even on foot with missions to do between them (assassination missions, courier missions, retrieval missions, conflict zones, etc.) all within a small-large area on a single planet giving you a reason to stay on a single body for a few hours or days.
The settlements feel nearly inconsequential when the primary gameplay loop requires you to go in and out of them constantly without any real reason to stay or care about them.
Let me know if I'm wrong or if you have another perspective.