No, they aren't. They said they wanted to do something to make getting the Crusader title more attractive so people actually get it instead of milking those extra dailies. I applaud them for finding a great way to get people to just give in and get the title.

I haven't heard anything about that, no, and they would likely have mentioned it if they were planning to. And I don't think it would make sense to do it. The Argent Tournament is still relative new. Also, getting the Crusader-title, I believe, is a relatively casual thing that everyone can do, so they don't have to the same reason to take it away like they did with the Glory of the Raider-drakes (so that only the hardcore would get them).

Anyway, even though I had that 3 level 80s were enough, and that leveling up another alt probably wouldn't be very enjoyable, I should maybe consider leveling one in the summer-vacation. The news of additional heirbloom-items combined with the news of cheaper mounts, flying mount at level 60 and with faster speed are certainly making it sound appealing.