From Arena-tournament

Hello everyone!
I used to play full-time in Arena-Tournament back in ~2014.

I quit playing for a long time. Now I am back and apparently AT is no more!
Congratulations to Warmane on the merge. However, I have a question regarding the account merging. I read somewhere that the accounts from AT were transferred here somehow. I had a few +2600 rated/full gear champs there that I would wish to have back.
Is it possible to get your AT account back? I know it has been a long time, but I am guessing there must be some sort of database.

Also, I was about to download the game and there were two versions of WOTLK (old and new); what is the difference?

Thanks in advance.

Merge occurred on February 2015.

AT players had around 6-8 months to merge their AT account with a Warmane account.
So, it is too late now.

Btw, on 2016 all titles and gear got removed for a fresh new start, so your character would have been naked anyway.

Welcome back (Blackrock realm = AT Woltk)

There is no difference between which Wotlk client you download from here: https://www.warmane.com/download
At the moment they are the same, previously one had updated models from WoD/Legion