I thought I read on these forums that Team 3D were planning to retire as tag team wrestlers, but that they would continue to wrestle for TNA in the singles division. Now I stand to be corrected on this point, although I am fairly certain I read that here a little while ago.
If this is correct, then this match is pointless. Team 3D really doesn't achieve anything with a win, because a win in their swan song, you know, going out on top, would make some sense, except they are apparently not going out. If Team3D wins, then they return to the company as singles competitors, it accomplishes nothing. If MCMG win to retire 3D, but they don't in fact retire, this seems to be pointless too.
Now if I am wrong about what I read, and Team 3D wins and actually retires from active competition at the top, that would be OK. Or if MCMG beats a team that some would argue are one of the best ever, would be a nice little rub for them as well.
Keeping Brother Devon and Brother Ray around on the singles side of things is a terrible idea. Either keep wrestling as a team, retire altogether, or relegate yourself to a backstage role.