Frontier and First Encounters had you landing on interesting (albeit a pallet shift) alien planets. They had "futuristic" alien cities. It might have ust ben the same buildings re-arranged, but imagination based on Assimov could fill in the blanks. Cities in which to trade or pick up missions.
Some of those structures on the surface are starports, so you'll at least be able to land and do business. If you want you'll be able to hop into an SRV and go exploring. There are a couple of things that we know of that you can do in your SRV:
1. Base raids. Take down skimmers, destroy generators, hack data links in order to get into a base where you'll (presumably) be able to find canisters or complete missions. If you're in a wing you can take on these bases both on the ground and with air support.
2. Materials. Horizons 2.0 will bring in the concept of 'materials' which is the precursor to a full loot/craft system. These materials allow you to synthesise ammunition, to give your FSD a boost, etc. To find them, you'll need to use your SRV and its wave scanner to locate them.
There will apparently be other things to find, and there's supposedly content for miners in Horizons also. We also know that later in the season there'll be multicrew, avatar creation (for use with multicrew), looting and crafting, deployable fighters and supposedly a lot more that hasn't been announced yet.
To me it all sounds hugely promising. But I can understand the point-of-view that you might want to hold off until you've seen more.