I think that this could work out pretty well.

WSG I could see winning sometimes if you grab the flag then just kill everyone you see. 7 Corruptions, 7 agonys, and 7 Siphons will drop anyone. If you just keep killing them all the way back to your base they should all be spawned behind you. And if one of them gets around you and grabs the flag, just wait in the middle and kill him when he comes out. If they get it back to their base, take your whole team and just kill your way in slowly. They wont be able to survive your focus fire, eventually they will get frusterated and let you win.

AB and EOTS will be a problem because they are all about zone control, however you will have some other people to help you with these BGs. I think the key would be to quickly cap at least 4 nodes in AB and at least 3 in EOTS, then just kill them at their last spawn point. You will be able to insta dot people to death in 1 or 2 GCDs, so as long as you get in range of runners for a couple seconds they wont make it very far. Again, usually when a team is getting dominated they will all play "defense" at a node they control, even though standing there is guarunteeing their loss. They are afraid to attack and die. So if you can get them to turtle up, you will win. Probably not the ideal BGs, but still doable.

I think Strand would be awesome. You could put a big hurting on the other teams tanks very quickly. And on offense you could kill their guns and anyone who comes close to the tanks you are running with. This BG actaully sounds like the most fun to me.

AV will still be a big stand off, which will be excellent for you. On my battlegroup alliance always runs to the last flag and caps it right away. They don't kill any NPCs or cap any towers. So when I quad-box I run there and kill them all, then retake anything that got capped on my way back north. This forces the stalemate, which we win most of the time. This will be especially true if you have dedicated healers, since you will be dropping people like crazy and hopefully not losing that many. This sounds really fun to me too.

I think that BGs have always been an area that boxers are successful in, this change is going to be great.