As much as i'd love to discuss the relative qualities of bread products (muffins beat crumpets on any given day, for that matter), i fear that not all members may share our enthusiasm.
So i'll have to shock you all with a contribution that some may even consider "worthwhile".
What i'd really like to see from E4 is a world that is as large and fascinating as that of an MMO, but without the need for other players.
When i first played F/FFE this was how it seemed - a vast universe that was mine to inhabit and explore. There was no logical end to it, like there is to most games. However, i recently went back and played FFE again, and although it's a great game, it just didn't seem as free as i remember it. Where before i felt like i had everything i needed, now i felt that i should be able to customise my ship, get out of it and explore on foot, form alliances with other pilots - all the things that more recent games have made possible.
So i do believe that if E4 had the same premise as FFE but with updated graphics, it would fail. We need to add a 4th dimension - consequence.
There were limited consequences in FFE - if you got in trouble with Interpol you would not be able to dock in an alliance port until you paid your fine. If you assassinated Dentara Rast then you couldn't take the mission to kill his assassin. But that was about the limit of it.
If E4 had as large and fascinating a world as modern MMOs, it would be great, but where it would need to make up for the lack of players is by creating interesting NPC factions/individuals.
As people have mentioned here, there should be more factions than Imperial/Fed/Alliance. Many more. Small- and big-time gangs, trade corporations, powerful enterpreneurs, peace communes, religious cults, Explorer's guilds, etc.
If i work for a particular group for a length of time and am successful, i would like to see that group's interests visibly expand in the universe, as well as the knock-on effects on my reputation with other allied or enemy groups.
I want this game to suck me in and make me play it for years, which no non-MMO game has done for a very long time.
I want to spend a whole day helping a bunch of space hippies (who i happened be hailed by when passing a small planet in the middle of nowhere) fight off an expansionist corporation that they are not able to fight themselves due to their philosophy of non-violence.
This would be a mission chain that i might never discover, due to it being a long way from the core systems, but there would be enough of them (i'm thinking thousands) that i will always bump into them now and then.
Of course, a virtual internet is another way to find out about mission chains.
It would suit me if i were never able to "complete" the game; buy the biggest ship, do all the missions, amass huge wealth.
Unlike all other single-player games, which i have completed in a few weeks, i want E4 to sit on my computer for years, and for there always to be something intriguing waiting for me to do.
I am sure that there are plenty of members here who would be delighted to design some extra mission chains.