I love most of these ideas, but do have some problems. I think more focus sould be put into combat for people instead of ships, but not quite as much as is being suggested. Your teleporter idea nearly mimics my own, which of course is a good mark. Androids I would love, as well as mechsuits. I think that if mechsuits are going to be implemented, they should focus on \"Labor\" and not combat. Tractor beams as well mimic my own thoughts. Hacking, though, I don\'t know. Of course, there should be a way to get past plexdoors and the like, but there seems to be no way to STOP this, just reverse it. If you\'re in a ship, stuck in a tractor beam, with somebody hacking your doors and about to break in, how are you able to stop them? You can\'t leave the ship and shoot them, you can just wait and be boarded. Magboots, eh. I suppose it would be cool if it allowed you to stick to any (Hull) surface, regardless of whether or not it\'s the floor. Jetpacks, I suppose might be good, but it would allow you a way to escape your ships death without actually dying. Though, thinking about that, it might not be bad. Also, DNA scanners? HELLZ YEAH
Anyways, I think all of the ideas have merit, even if in my opinion need touching up.
I do have some suggestions myself. Lots of them, in fact. This post may end up being close in size to the original. I\'m not going to bother reading the comments to see if other people posted these because that would take way too long.
WARP CORES
Warp Cores would be enormously expensive, and would take up lots of space so you could only have them on capital ships. You would need a lot of the blocks for it to actually work well, and a decent power supply. Depending on their size, they would allow you to travel great distances in seconds to minutes. Range would be limited by size, as well as the time it takes. Once you arrive at your destination, you won\'t be able to fire weapons or move at full speed for a time, depending on the length of your journey. If you were looking out the window for your trip, you would see Star Wars-esque hyperspace, with brief flashes of planets and such.
BLACK MARKET
The black market would be an alternative to shops, run by smugglers instead of the trade guild. Certain goods would be cheaper, ( Things like personal weapons, explosives, and cloakers), while others would be the same(Hulls, lights, and the like), or more expensive(Mechsuit parts, warp cores, and other things that normally only powerful corporations like the trade guild would have). The goods sold for more at black market shops would have a tendency to appear more often at black market shops. Not only would these shops be rarer, but smugglers would attack if they felt they had a chance to get their sold goods back safely (There would basically just be a chance that they would send out ships scaled to yours). Black market shops would perhaps be defended by minefields to ensure only small ships can get through, and maybe be located in abandoned space stations, shanty towns on planets, or inside of enormous space animal corpses (I want that one so much).
SPEAKING OF SPACE ANIMALS
Whether tiny insectlike creatures that feed on the metal so often found in space these days, or enormous leviathans that metabolize the radiation from sources such as suns (And power blocks), all space animals will pose some threat or annoyance. The aforementioned insects would slowly damage and destroy hull blocks. They would gather around anywhere where hulls are sold, or shipwrecks. If you fly near these places, they might decide to take a bite out of your own hull. The leviathans would live close to suns, and would normally claim the sectors around the sun as its own, and if they sense a ship with an excess of power blocks, they may decide to stop it and claim it as their own. Those are the two examples I think I would like the most.
SPEEDER BIKES
Not ships, but very similair. Essentially placeable miniships with what are basically pistols mounted on top.
TRIBESMEN
Very rarely, tribesmen would be on a planet. As you descend they would attack you with bows & things, but you would be able to awe them with your ship and make them worship you as a god. Sometimes the attempt will make them hate you more. You would be able to teach them, maybe make them your crew, and they would defend you with their lives. Occasionally they would give you gifts. Sometimes they will pull a Pirates of the Caribbean(Among other movies) and attempt to sacrifice you.
ETC. The rest shall remain in my head for now.