I really don't have anymore insight on the topic than anybody else you might ask, unfortunately. Only Blizzard knows what Blizzard does. What I can do is give my opinion, though!
I really don't think we'll see murlocs as a playable race anytime soon. Or ever. It's funny to think about, but... no, not gonna happen.
Goblins? I could see it. If it happens, I don't think it will be the Steamwheedle Cartel. What they would probably do is have one of the many Trade Princes throw their lot in purely with the Horde, and keep the Steamwheedle Cartel nice and neutral. The Cartel sees staying neutral as being in their best interests business-wise (which is why they aren't officially members of the Horde, even if they favor them), but maybe other Goblins don't feel the same way. It certainly wouldn't be the first time we've seen a story about a mega-corporation getting their heads too high in the clouds, and deciding having their personal army would be a good move. Well, maybe the first time in Azeroth. But not the first time in fiction.
So will Blizzard do it? No idea. Could they do it? Sure!
"Will we have new sources of Crusader badges in 3.2? Will they be from new tournament dailies, the exalted Silver Covenant/Sunreaver quests, drop from the 5/10/25 instance bosses?"
Yes, there will be new sources of badges. We don't know their drop rates from the instanced content yet, or even if they drop there at all, because that stuff isn't available for play yet. The various quests acquired at Crusader and Sunreavers/Silver Covenant Exalted all give Champion's Seals, though. Once you've hit those landmarks your Seals-Per-Day will skyrocket. Well, assuming you like daily quests the will!
"Aside from the Argent Tournament, what is another way to raise rep with home cities? I mean I've done some of the low level quests and I'm still at most revered with my main faction (Thunder Bluff since I'm a Tauren) everything else is honored. Any tips or anything? I really want the Crusader title."
You pretty much have two primary choices here. The first being keep hunting down low level quests. If I remember right, nowadays you'll still get the full rep gain off of even grey quests. Find quest hubs you haven't done, and tear through it. That would be the most varied and interesting way to do it.
The other way is to do cloth turn-ins, but that requires either a lot of gold or a lot of time spent farming. Every capital city has a cloth turn-in NPC for their faction. First they'll ask you for 60 Wool, then 60 Silk, then eventually you get to Runecloth. There's no Netherweave or Frostweave turn-in, just Runecloth. And it takes a lot of cloth to make any rep progress.
If anybody has any other suggestions, please leave them in the comments!
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