Faction change effecting argent tournament?

Hello,

I'm currently considering a faction change, because friends of mine want to start playing on Lordaeron but they'd prefer to play ally instead of horde (where I'm currently playing) but I don't want to abandon my character. Now my concern: on retail they made sure that about everything (except for impossible progress like quest count from quest you couldn't have done, because they're faction specific) is kept/changed to an equivalent. The big problem was the argent tournament (after all, faction specific even though equivalents exists). As far as I know you lost your progress at the tournament. Is it the same on here or will I be the champion of 4/5 faction from the alliance if I'm already on horde?

Thanks for your help :)