Obviously, the expansion isn't going to bring in new badge vendors that we can use these for.... Epic level 70 gems will probably still be around and used for your intro raiding gear, but chances are they'll be replaced pretty quick too.So whaddaya think? If you have extra badges, liquidating them into Nethers and Vortexes isn't too bad an idea, since even Badge gear might be overtaken by green gear a few quests into Northrend. But then again, even crafted gear that uses those items might end up being useless within the first few levels, so what's a Badge hoarder to do?
I'm debating liquidating my badges into gems, nethers and vortexes and selling them on the AH. Of course, there's the issue of "how soon is too soon" and "what if the patch puts in some new vendor items", along with "I need to get the items out on the market before it becomes flooded and no one wants them due to the imminent release of the LK expansion"!
What's your plan for getting rid of the Badges you have left? Are you just going to spend them as you need them and see what solutions present themselves when Wrath arrives? It would be interesting if Blizzard, say, offered an XP reward in exchange for them after level 70. Or have you already liquidated your stock by selling out Primal Nethers on the AH? What happens to your Badges when the way to Northrend opens up?