If you're like me and one of your toons just never got around to getting a PvP weapon last season, you might've still gotten a full honor set and been excited for the ease of access to getting a shiny new PvP weapon for honor today. Of course, then you saw the "7250 Honor Gained this season" requirement. This little trick might only benefit a few people, but I thought I'd share it anyway:
Honor "gained" by turning 375 justice points into 250 honor at the JP vendor counts toward your honor gained for the season. So, first step is, of course, turning excess justice into honor. Secondly, however, since there's a PvP vendor who will sell you 250 Justice for 375 Honor, you can go to him and get your honor turned into Justice, and then, of course, turn that Justice into Honor again, all of it counting toward your Honor earned this season.
With this method I took my DK, who's been sitting on the sidelines with a full set of honor pvp gear and no weapon (in favor of my monk, whom I did get weapons on), and turned ~1800 Justice and ~2600 Honor into 4000 "Honor gained during the season" in under 5 minutes, albeit at the cost of most my Justice and Honor supply (as you obviously lose 125 points per transaction with the NPC's).
Hope this helps a few people who have lots of stockpiled points but little time to farm who want a PvP weapon much faster. Have fun. : )