Well overall I think this is a bad thing for us on the PC. Unless FD is hiring a new group of developers just to do this port (which is sounds unlikely) then the team that is already distracted with the Mac port/maintenance project will have to fund the resources for this.
Since release yes they've added content but the game still feels terribly empty. Yes there are 4 billion systems but after you've explored about 10 you've seen pretty much everything. The same goes for delivery and combat missions which at least in the systems I've been working have really dried up since the release. The part about this that bothers me the most is that the PC users provided the capitol or at least a significant portion of it for a full and complete game. At launch people kept saying the content is coming, just give them a little time. Well yes we've got some patches but they've done little in my personal opinion to take this game where it should have been at release or where it needs to be to maintain the majority of its fan base.
Now the ports come in, first the Mac and now the xBox. This is now splitting the development into three different code bases for the same Dev team. That will make the task of maintaining the product that much harder (in terms of resource cost) as you have to do everything three times. Now add in additional content that is optional and the code splits yet again. With the first paid expansion they go from 3 different bases to six as they need to maintain the base for people who don't buy the expansion and with the second it goes to nine. God help us if they add support for PS4.
The bottom line is that it will all come down to their investment in the game. While they will always lose some efficiency by adding a new platform, a good deal of the impact can be minimized by adding resources. As a publicly traded company FD is not at the end of the day going to be drive by the things that we say but rather the need to generate an ever increasing return for their investors. Unfortunately while we would like to think that those of us who backed the game before it released were investing, the people who hold stock are the ones they really care about providing a return. FD's operating margin is a big part of how profitable they will be at the end of the day and adding resources is a serious hit to this factor.
I'm still holding on to some hope that FD will make ED a decent game but after the two months its been out I find it harder and harder to sit down in play. I traded up to a fully upgraded Type 7, put enough away to get a fully tricked out Asp to begin exploring and then a nice nest egg for emergencies. Then I went out and explored for the last three week and yes I found a lot of previously systems not yet visited by another player (or at least that scanned its planets/stars/etc..) and have my name now stamped on them. Now what? Combat isn't something I find a lot of joy in, Trading is nothing more than a grind now and after you see the first 10 or so star systems exploring shows you nothing new and is really perhaps even more or a grind (scoop, scan, fly by, repeat) as nothing interesting happens while you exploring systems.
Adding platforms without significant investment in resources is going to slow adding the content that is vital to give this game legs to take it into the future.