i'm going with they will attempt to placate to the long time suffering of the Mercenary class by giving them something quite overpowered.
only to be blown up in the forums and nerfed in an emergency patch.
as far as the wager...could be gentlemen's bet...something of value (don't think u are on the Garbinger...get it..garbage, oh, HO...whew!)
or something humiliating...like q'ing for RWZ's and SS'ing 10 matches to post here.
are you up for it? :P
Gentleman's Wager? I bet you 1 credit sir it either sucks out loud or gets nerfed within 1 patch.
Though your scenario doesn't seem unlikely, we'll see if they can stick to their guns if it happens.