In my opinion, one of the biggest barriers to actually having fun in this game is the time it takes to find and acquire ships and modules. If I like the sound of a particular mission type or community event but I just don't have the appropriate ship or modules for, I have to waste time searching websites for the closest starport selling what I'm looking for... and of course nowhere sells absolutely everything you're looking for! So you have to travel from one system to the next until you have everything you need, by which point you're kinda bored or you've run out of time.
We now have ship transfers and module storage, so I would love to see an expansion of these systems to include remote shopping of modules and having them delivered to your current location. While still having to wait x minutes/hours for the delivery, much like ship transfers, this would allow CMDRS to fly to where they need to be to participate in the activity, and wait for everything they need to arrive.
This would make trying different ship specs and professions so much quicker, reducing the time it takes to perform whatever activities they are looking to try, and allowing people to have fun faster. Personally, I want to be able to load up the game and do something fun asap, but I always seem to be planning to have fun, rather than actually having it. So I end up just playing something else.