Well, to be honest i thought there was a general lack of interest for TNA and i also got bored at modding.
I made mods for Showdown because it allowed me to get out of TNA and make whoever i wanted, and the creator kit made things easy and fast.
About a TNA patch, it would be very time consuming and i only make wrestlers mods. Hacking, arena/menu modding, etc... are things i've never done. Most importantly, i don't know how to hack and most of the wrestlers have moves not included in the game.
I would love a TNA save too though, so if anyone has time & interest in doing it, i can work on the roster.
I might get back at TNA mods now (starting tonight) that i've finished Mysterio for Showdown, so maybe you'll see your requests fullfilled.