X3 would be fine.. but..
I would love to see X3 TC ported, but at this moment I already have two "X" titles from LGP (X2 - The Threat and X3 - Reunion), and bot of the games can not be played because the LGP DRM server is down. The server has been down for months and months now, and I see no sign it will ever come up again.
So - there I am with two worthless disks where I paid money for (and shipping them to the Netherlands increased the price even further). The games install fine, but cannot be played because I can not validate them. I am really pissed about that. Guess that's the reward you get for being legal..
Thus - even if a port is done for X3 TC (with I doubt hugely at this moment), please, please, please, please, please do NOT include a DRM that is depending on a "phone home" server. I will certainly not buy it, because I have learned my lesson - the hard way...