With current technology its impossible to cryogenicly freeze someone.
Theres lots of ideas from science fiction, the first question to ask is is it possible or not, then to think about what degree of technical advancement you would need, (many ideas can get thrown out here) how much energy would be needed to acheive it & finaly what side effects or difficulties would need to be overcome.
In the case of wormholes, theoreticly they could be possible, you would need realy very advanced technology, able to manipulate gravity and the nature of reality at a quantum level. Thirdly it would take a great amount of energy to open even a small wormhole, and that energy requirement would probably increase with the size of the wormhole but not perhaps with the distance covered as a wormhole is a tunnel through reality from point to point, it doesn't actualy have any length. One of the big problems with wormholes is how exactly you would "target" them. Whats to stop the other end opening inside a sun (atracted by its gravity) or somewhere random.
However, I don't think faster than light travel, or wormholes would be absoloutly essential for a space mod. Imagine your self as a space captian, its very much like being in the army or navy during a war, Long periods of inactivity followed by short bursts of hectic activity. You might travel for two hundred years frozen in your cryocrypt with your ship on auto pilot, just to fight one battle that could have been called off by the time you got there. In some respects its like being a ship officer in napoleonic times, you could be fighting against a french vessel of the coast of austrailia while back at home your nation has been at peace with the enemy for several years. If the map is 24 light years across and you travel from one end to the other at one quarter the speed of light it only takes you 86 years to complete your journey. For a napoleonic ship captain that would be too long a mission, but for a culture with cryogenic facilities and anti-aging drugs it would be a regular day (or 31,000) at the office.
Bob McDob I realy like your ship designs, especialy the dreadnought in the lower right. Have you tryed making any animations your self? Unit animations for a space mod are prety easy, you don't realy need to work about shadows, and the animations are a peice of cake, just a flash of light for the guns and slow dismemberment or change of graphics for the death animation.
I am thinking of using something like the starlanes in the mod, though the alternaives are to have groups of stars like luytens star and procyon or Sol and alpha centuri surronded by an "Island" of sea/local space, with large areas of ocean/deep space separating them. this would make short hops possible, but stop any early leap to the outer sytems (though I think that could be fun).
One Idea that I had this morning at work was to make rivers into "atmosphere" and surround certain planets with a river on all side of the square, havn't tryed it yet, so I don't know if its graphicly possible (or easy), though I could just make rivers invisible.
The point is that it would allow citys placed on or near planets with an atmosphere to grow to size twelve without an aqueduct (oxygen plant) And could be combined with desert to create a flood plains area around certain lush planets ("oxygen rich" atomsphere), that would boost population in nearby cities.
Also It would give planets with an atmosphere a defence bonus, and would mean that you needed a special tech (space elevator) to get any movement benefit from roads (which I'm thinking of making space stations, or refueling points).
Imagine how popular this would make terran planets, with a high food bonus on the square itself and a halo of floodplains around the planet, it could quicky beome a very populous city location.